This repository contains a collection of Python questions that I have solved, ranging from beginner to advanced levels. Solving these problems has helped me improve my Python problem-solving skills. The goal of this project is to get familiar with different challenges and become proficient in solving problems.
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- ## **Translated versions**
- [Persian Version - فارسی](/python-questions-that-i-solved/READMEir.html)
---
## 🤝 Contribution
__If you have more questions or would like to suggest better solutions, I’d be happy to collaborate! Please feel free to submit a `Pull Request`.__
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---
<a id="go-to-the-question-list"></a>
## ✍️ I have categorized the questions so that you have better access to both the questions and the index.
| `1 - 50` | `55 - 105` | `110 - 160` | | | | | | | |
|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|
| [1](#1) | [55](#55) | [110](#110) | | | | | | | |
| [5](#5) | [60](#60) | [115](#115) | | | | | | | |
| [10](#10) | [65](#65) | [120](#120) | | | | | | | |
| [15](#15) | [70](#70) | [125](#125) | | | | | | | |
| [20](#20) | [75](#75) | [130](#130) | | | | | | | |
| [25](#25) | [80](#80) | [135](#135) | | | | | | | |
| [30](#30) | [85](#85) | [140](#140) | | | | | | | |
| [35](#35) | [90](#90) | [145](#145) | | | | | | | |
| [40](#40) | [95](#95) | [150](#150) | | | | | | | |
| [45](#45) | [100](#100) | [155](#155) | | | | | | | |
| [50](#50) | [105](#105) | [160](#160) | | | | | | | |
---
## ❓ Questions
## <a id="1"></a>
**`1`**. Write a program that stores the information of three students (including student ID, first name, last name, and GPA) in a list of dictionaries and then prints them in the following format.
<br />
`Input` : None
<br />
`Output` :
9823567 ali ahmadi 16.25
9781294 reza ghasemi 13.75
9976239 mehdi tavakoli 18.32
<br />
```python
nested_dictionaries = {
"student1" : {"studentID" : 9823567, "studentFirstName" : "ali",\
"studentLastName" : "ahmadi","studentAvrage" : 16.25},
"student2" : {"studentID" : 9781294, "studentFirstName" : "reza",\
"studentLastName" : "ghasemi", "studentAvrage" : 13.75},
"student3" : {"studentID" : 9976239, "studentFirstName" : "mehdi",\
"studentLastName" : "tavakoli", "studentAvrage" : 18.32}
}
for student in nested_dictionaries:
for item in nested_dictionaries[student].values():
print(item, end= " ")
print()
2. Write a program that takes the number N as input and creates a dictionary where the keys are the numbers from 1 to N, and the values are the squares of the keys.
Input : Enter Number : 9
Output : {1: 1, 2: 4, 3: 9, 4: 16, 5: 15, 6: 36, 7: 49, 8: 64, 9: 81}
# step 1
n = int(input("Enter Number : "))
dictionary = {}
for i in range(1, n+1):
dictionary[i] = i*i
print(dictionary)
# step 2
n = int(input("Enter Number : "))
dictionary = {x: x*x for x in range(1, n+1)}
print(dictionary)
3. Write a program that takes a positive integer N as input, then creates an English-to-Persian dictionary with N words by receiving words and their meanings from the user, and finally prints the dictionary.
Input :
Enter Number : 3
Enter English word 1 : book
Enter Persian word 1: ketab
Enter English word 2: chair
Enter Persian word 2: sandali
Enter English word 3: bag
Enter Persian word 3: kif
Output : {‘book’: ‘ketab’, ‘chair’: ‘sandali’ , ‘bag’: ‘kif’}
dictionary = {}
n = int(input("Enter Number : "))
for myDict in range(1, n+1):
en_to_ir = input("Enter English Word : ")
ir_to_en = input("Enter Persian Word : ")
dictionary[en_to_ir] = ir_to_en
print(dictionary)
4. Write a program that takes 5 positive integers as input and stores them in a list. Then, using a function, multiply all elements of the list by 10, and finally, print the resulting list in the main program.
Input :
Enter Number : 143
Enter Number : 69
Enter Number : 21
Enter Number : 567
Enter Number : 48
Output : [1430 , 690 , 210 , 5670 , 480]
def multiply_list_elements(lst):
lst = [i * 10 for i in lst]
return lst
lst = []
for i in range(1, 6):
n = int(input("Enter Number : "))
lst.append(n)
print(multiply_list_elements(lst))
5. Write a program that takes a list of nonzero integers as input using a function. Then, using another function, find and print the largest and smallest elements of the list. (The input process should stop when the user enters zero.)
Input :
Enter Number : 25
Enter Number : 9
Enter Number : 83
Enter Number : 6
Enter Number : -12
Enter Number : 17
Enter Number : 0
Output :
Max is : 83
Min is : -12
list_of_numbers = []
def get_number(list_of_numbers):
while True:
n = int(input("Enter Number : "))
list_of_numbers.append(n)
if n == 0:
break
def min_and_max():
print(f"max is : {max(list_of_numbers)}")
print(f"min is : {min(list_of_numbers)}")
get_number(list_of_numbers)
min_and_max()
6. Write a program that prints the largest input number. The input numbers are between 10 and 90, and the input process should continue until -1 is entered.
lst = []
print("pleas select number from 10 to 90")
while True:
n = int(input("Enter Number : "))
if n in range(10, 91):
lst.append(n)
elif n < 0:
break
else:
print("pleas select number from 10 to 90")
print("max is : ", max(lst))
7. Write a program that takes a string containing multiple words as input and outputs the string with the first letter of each word capitalized.
# step 1
user_input = input("Enter a word : ")
print(user_input.title())
# step 2
user_input = input("Enter a word : ").split()
print(" ".join([word.capitalize() for word in user_input]))
8. Write a program that takes a number as the day of the year from the input and determines in which season that day falls.
Input : 154
Output : Summer
# step_1
number_of_day = int(input("Enter Number Of Day : "))
# spring, summer, fall, winter = 93 + 93 + 90 + 89 = 365
if number_of_day in range(1, 94):
print("spring")
elif number_of_day in range(94, 187):
print("summer")
elif number_of_day in range(187, 277):
print("fall")
elif number_of_day in range(277, 366):
print("winter")
else:
print("Your Number Is Wrong!!!\nPlease Try Again")
# step_2
number_of_day = int(input("Enter Number Of Day : "))
if (1 <= number_of_day <= 93):
print("spring")
elif (94 <= number_of_day <= 186):
print("summer")
elif (187 <= number_of_day <= 276):
print("fall")
elif (276 <= number_of_day <= 365):
print("winter")
else:
print("Your Number Is Wrong!!!\nPlease Try Again")
9. Write a program that takes three numbers as input and prints the middle number (the second largest).
Input : 20 - 35 - 17
Output : 20
# step 1 ----> max(), min()
num_1 = int(input(" Enter Your Number : "))
num_2 = int(input(" Enter Your Number : "))
num_3 = int(input(" Enter Your Number : "))
if (num_2 < num_1 > num_3):
print(max(num_2, num_3))
elif (num_1 < num_2 > num_3):
print(max(num_1, num_3))
else:
print(max(num_1, num_2))
# step 2
mylist = []
for i in range(0, 3):
number = int(input("enter number : "))
mylist.append(number)
mylist.remove(max(mylist))
mylist.remove(min(mylist))
print(f"your number is : {mylist}")
# step 3 ----> with array, remove() max() and min()
num_1 = int(input("Enter Your Number : "))
num_2 = int(input("Enter Your Number : "))
num_3 = int(input("Enter Your Number : "))
array = [num_1, num_2, num_3]
array.remove(max(array))
array.remove(min(array))
print(array)
# step 4
num_1 = int(input("enter number : "))
num_2 = int(input("enter number : "))
num_3 = int(input("enter number : "))
if (num_1 > num_2) and (num_1 > num_3) and (num_2 > num_3):
print(num_2)
elif (num_1 > num_2) and (num_1 > num_3) and (num_3 > num_2):
print(num_3)
elif (num_2 > num_1) and (num_2 > num_3) and (num_1 > num_3):
print(num_1)
elif (num_2 > num_1) and (num_2 > num_3) and (num_3 > num_1):
print(num_3)
elif (num_3 > num_1) and (num_3 > num_2) and (num_1 > num_2):
print(num_1)
elif (num_3 > num_1) and (num_3 > num_2) and (num_2 > num_1):
print(num_2)
else:
print("error")
# step 5
a = int(input("enter number : "))
b = int(input("enter number : "))
c = int(input("enter number : "))
if a > b > c or c > b > a:
print(b)
elif b > a > c or c > a > b:
print(a)
elif a > c > b or b > c > a:
print(c)
else:
print("wrong!")
10. Write a program that takes an integer n as input and prints the first n terms of the Fibonacci sequence.
(The Fibonacci sequence is generated by starting with two terms of 1, and each subsequent term is the sum of the previous two terms.)
Input : 8
Output : 1 - 2 - 3 - 5 - 8 - 13 - 21
# step_1 ----> with function
def fibo(n):
if (n < 0):
print("Error")
elif (n == 0):
return 0
elif (n == 1):
return 1
else:
return fibo(n-1) + fibo(n-2)
user_number = int(input("Enter Number : "))
print(fibo(user_number))
# step_2 ----> with while
f1 = 1
f2 = 1
i = 3
user_number = int(input("enter number : "))
print(f1, f2)
while (i <= user_number):
f3 = (f1 + f2)
print(f3, end=" ")
f1 = f2
f2 = f3
i += 1
11. Write a program that takes two positive integers, a and b, as input, then raises a to the power of b and prints the result.
Input : 2 - 6
Output : 64
# step 1
a = int(input("Enter Number : "))
b = int(input("Enter Number : "))
print(a**b)
# step 2
def expoent(a, b):
return a ** b
a = int(input("Enter Number : "))
b = int(input("Enter Number : "))
print(expoent(a, b))
12. Write a program that takes a number as input and generates an output similar to the example within the range of that number.
*
* *
* * *
* * * *
* * * * *
# step 1 ----> with for
n = int(input("Enter Number : "))
for i in range(n + 1):
print("* " * i)
# step 2 ----> with while
i = 0
n = int(input("Enter Number : "))
while i <= n:
print("* " * i)
i+=1
#step 3 ----> nested loops
n = int(input(" Enter Number : "))
for i in range(n):
for j in range(i+1):
print("*" * 1, end=" ")
print()
13. Write a program using a while loop that takes 20 numbers as input and then outputs their sum.
sum = 0
i = 1
while i <= 20:
n = int(input("Enter Your Number : "))
sum += n
i += 1
print(sum)
14. Write a program that takes multiple positive integers as input, then calculates and prints the sum and average of the unique numbers.
Notes:
Input :
Enter Number : 8
Enter Number : 2
Enter Number : 3
Enter Number : 8
Enter Number : 1
Enter Number : 2
Enter Number : -4
Output :
sum : 14
avg : 3.5
mySet = set()
while True:
n = int(input("Enter Your Number : "))
mySet.add(n)
if n < 0:
break
mySum = sum(mySet)
len_mySet = len(mySet)
avg = mySum / len_mySet
print(f"sum is : {mySum} and avg is : {avg}")
# print("sum is :", mySum, "and avg is : ", avg)
# print("sum is : %i and avg is : %d" %(mySum, avg))
# print("sum is : {0} and avg is : {1}".format(mySum, avg))
15. Write a program that takes eight names as input and stores them in a list. Then, it filters the names that start with the letter ‘m’ and end with either ‘d’ or ‘i’, storing them in a set, and finally prints the set.
lst = []
mySet = set()
i = 0
while (i < 8):
userName = input("Enter Your Name : ")
lst.append(userName)
i += 1
#List Comprehension
list2 = [item for item in lst if 'm' == item[0] and 'd' == item[-1] or 'm' == item[0] and 'i' == item[-1]]
mySet.update(list2)
print(mySet)
# step 2
lst = []
mySet = set()
i = 0
while (i < 8):
userName = input("Enter Your Name : ")
lst.append(userName)
i += 1
#startswith() and endswith()
for item in lst:
if item.startswith('m') and item.endswith('d') or\
item.startswith('m') and item.endswith('i'):
mySet.add(item)
print(mySet)
16. Write a for loop that takes numbers as input and stores them in a list. The loop should stop (using break) when the sum of the numbers exceeds 50.
lst = []
while True:
lst.append(int(input("enter number : ")))
if sum(lst) >= 50:
print("sum is >= 50")
break
17. Write a program that takes a number as input and returns an output similar to the following.
*
* *
* * *
* * * *
* * * * *
* * * *
* * *
* *
*
n = int(input("enter number : "))
for i in range(n):
print("* " * i)
for j in range(n, 0, -1):
print("* " * j)
18. Write a program that reads the number of items and the price of each item, then calculates and displays the total sales amount (total sales = number of items * price per item).
sum = 0
number_of_goods = int(input("Enter The Number Of Goods : "))
for counter in range(number_of_goods):
cost_of_goods = int(input("Enter The Cost Of Goods : "))
sum += cost_of_goods
print(number_of_goods * sum)
19. Write a program that prints the following shape in the output.
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
n = int(input("enter number : "))
for i in range(1, n + 1):
for j in range(1, i + 1):
print(j, end=' ')
print()
20. Write a program that reads a four-digit number. If the product of the first and fourth digits equals the sum of the second and third digits, print Yes; otherwise, print No.
number = [int(i) for i in input("Please enter a four-digit number : ")]
print("YES") if number[0] * number[3] == number[1] + number[2] else print("NO")
21. Write a program that reads a three-digit number. If the sum of the first and third digits equals the second digit, print Yes; otherwise, print No.
number = [int(i) for i in input("Please enter a three-digit number : ")]
print("YES") if number[0] + number[2] == number[1] else print("NO")
22. Write a program that takes a number as input and removes all zeros from it.
n = [int(i) for i in input("Enter Number : ")]
for i in n:
if i == 0:
n.remove(0)
for i in n:
print(i, end='')
23. Write a program that takes two numbers, a and b, as input. It raises the smaller number to the power of the larger number and displays the result.
a = int(input("Enter Number : "))
b = int(input("Enter Number : "))
print(a**b) if a < b else print(b**a)
24. Write a program that takes the first name, last name, and salary of 10 people as input. It then displays the name and surname of the person with the highest salary.
lst = []
for counter in range(1, 11):
full_name = input("Enter Your First Name And Last Name: ")
salary = int(input("Enter Your Salary : "))
lst.append([full_name, salary])
# print(lst)
for i in lst:
for j in lst:
print("Most Salaries : ", j) if j[1] > i[1] else print()
25. Write a program that receives a student’s grade. If the grade is less than 11, it displays the word Failed; otherwise, it displays Passed.
i = 1
number_of_lessons = int(input("Enter The Number Of Lessons : "))
while i <= number_of_lessons:
score = int(input("Enter Your Score : "))
print("Failed") if score < 11 else print("Passed")
i+=1
print("Finish")
26. Write a program that takes two two-digit numbers and determines whether they share any common digits.
num1 =[int(i) for i in input("Please enter a two-digit number : ")]
num2 = [int(i) for i in input("Please enter a two-digit number : ")]
for i in num1:
for j in num2:
if i == j:
print("Similar Number is -> ", i)
27. Write a program that takes a number as input and determines how many digits it has. The input number will have a maximum of 5 digits.
lst = []
while True:
user_input = [int(i) for i in input("Please Enter a 5-Digit Number : ")]
lst = user_input
if len(lst) in range(1, 6):
print(f"The number entered is {len(lst)} digits")
break
else:
print("Error\nPlease Try Again")
28. Write a program that takes a string as input and removes any extra spaces between its words.
user_input = ''.join(input("Enter Your String : ").split(' '))
print(user_input)
29. Write a program that takes a number as input in the main program, calculates the largest digit of the number in a separate function, and then displays the result in the main program.
def max_number(n):
return max(n)
n = [int(i) for i in input("Enter Number : ")]
print(max_number(n))
30. Write a program that takes three inputs from the user and outputs the largest, smallest, and the sum of the numbers.
lst = []
for n in range(3):
lst.append(int(input("Enter number : ")))
print(f"max is : {max(lst)}")
print(f"min is : {min(lst)}")
print(f"sum is : {sum(lst)}")
31. Write a program that takes a six-digit number as input and outputs the largest digit within the number.
n = [int(i) for i in input("Enter number : ")]
print(max(n))
32. Write a program that takes 10 numbers as input and displays the count of zero, positive, and negative numbers.
zero = 0
positive = 0
negative = 0
try:
for i in range(10):
n = int(input("Enter number : "))
if n == 0:
zero += 1
elif n > 0:
positive += 1
elif n < 0:
negative += 1
print(f"zero : {zero} - positive : {positive} - negative : {negative}")
except ValueError as error:
print(error)
33. Write a program that takes the radius of a circle as input and displays its circumference, area, and diameter.
radius = eval(input("Enter The Radius of The Circle : ")) # Radius
area = ((radius**2)*3.14) # Area
circumference = ((3.14*2)*radius) # Circumference
diameter = radius*2 # Diameter
print(f"area is : {area}\ncircumference is : {circumference}\n\
diameter is : {diameter}")
34. Write a program that takes two numbers as input, performs the four operations (addition, subtraction, multiplication, and division) on them, and displays the results.
num1 = int(input("Enter First Number : "))
num2 = int(input("Enter Second Number : "))
print(f"addition is : {num1 + num2}\ndivition is : {num1 // num2}\n\
multiple is : {num1 * num2}\nexponet is : {num1 - num2}")
35. Write a program that takes three numbers as input, calculates the sum of the odd numbers, and displays the result.
odd_number = 0
try:
for _ in range(3):
x = int(input("Enter number : "))
if x % 2 != 0:
odd_number += x
if odd_number != 0:
print(f"odd number : {odd_number}")
elif odd_number == 0:
print("No odd numbers")
except ValueError as error:
print(error)
36. Write a function that takes an integer n as input and returns the sum of the numbers from 1 to n.
def sum_of_numbers():
n = int(input("Enter Number : "))
return sum(range(1, n + 1))
print(sum_of_numbers())
37. Write a program that takes the two parallel sides and the height of a trapezoid as input and calculates its area.
def Trapezoid(a, b , h):
return (((a+b)/2)*h)
a = float(input("Enter The Big Rule : "))
b = float(input("Enter The Small Rule : "))
h = float(input("Enter The Height : "))
print(Trapezoid(a, b, h))
38. Write a program that takes a number as input, calculates the sum of its tens and hundreds digits, and displays the result.
sum = 0
n = [int(i) for i in input("Enter Yor Number : ")]
n.pop()
sum += n.pop()
sum += n.pop()
print(sum)
39. Write a program that takes a multi-digit number as input and outputs its reverse.
#step 1
n = input("Enter Number : ")
# print(type(userNumber))
print(n[::-1])
#step 2
n_list = [int(i) for i in input("Enter Number : ")]
# print(type(userNumber))
n_list.reverse()
print(n_list)
40. Write a program that takes two numbers, x and y, as input and swaps their values.
# Swapping variables.
x = int(input("Enter x : "))
y = int(input("Enter y : "))
x, y = y, x
print(f"x : {x} and y : {y}")
# Swapping values using a temporary variable.
x = int(input("Enter x : "))
y = int(input("Enter y : "))
temp = x
x = y
y = temp
print(f"x : {x} and y : {y}")
# Swapping values using addition and subtraction operations.
x = int(input("x : "))
y = int(input("y : "))
x = x + y
y = x - y
x = x - y
print(f"x : {x} and y : {y}")
# Swapping values using bitwise XOR operator.
x = int(input("Enter x : "))
y = int(input("Enter y : "))
x = x^y
y = x^y
x = x^y
print(f"x : {x} and y: {y}")
41. Write a program that displays the numbers between two given numbers.
x = int(input("Enter First Number : "))
y = int(input("Enter Second Number : "))
print([i for i in range(x+1, y)])
42. Write a program that outputs the two-digit numbers between 10 and 100 where the first and second digits are equal.
# step 1
for i in range(10, 100):
if str(i)[0] == str(i)[1]:
print(i, end = ' ')
# step 2
n = [str(i) for i in range(10, 100)]
for i in n:
if i[0] == i[1]:
print(int(i), end = ' ')
43. Write a program that takes four numbers as input and displays the smallest one.
num_list = []
for i in range(1, 5):
n = int(input("Enter Numbers : "))
num_list.append(n)
print("min is : ", min(num_list))
44. Write a program that takes 4 numbers and displays the first even number among them.
positive_numbers = [int(input("enter number : ")) for i in range(4)]
for i in positive_numbers:
if i % 2 == 0:
print(i)
break
else:
continue
45. Write a program that receives the length and width of a rectangle from the input and calculates and prints its area and perimeter.
length = int(input("Enter The Length Of The Rectangle : "))
width = int(input("Enter The Widthh Of The Rectangle : "))
area = length*width
perimeter = ((length+width)*2)
print(f"area is : {area}\nperimeter is : {perimeter}")
46. Write a program that takes two numbers. If both of them are divisible by 3 or both are divisible by 7, print “Yes”; otherwise, print “No”.
number_1 = int(input("Enter number : "))
number_2 = int(input("Enter number : "))
if number_1 %3 ==0 and number_2 %3 == 0 or\
number_1 %7 ==0 and number_2 %7 == 0: print("YES")
else: print("NO")
47. Write a program that takes a number. If both its units and tens digits are even, print “Yes”; otherwise, print “No”.
# step 1
pop1 = []
pop2 = []
userNumber = [int(i) for i in input("Enter Number : ")]
for i in userNumber:
pop1 = userNumber.pop()
pop2 = userNumber.pop()
if pop1 %2 == 0 and pop2 %2 == 0: print(pop1,",", pop2, "-> YES")
else: print(pop1,",", pop2, "-> NO")
# step 2
userNumber = int(input("Enter Number : "))
if (userNumber %2 == (userNumber//10)%2): print("YES")
else: print("NO")
48. Write a program that takes two numbers. If both are greater than 20, print “Yes”.
number_1 = int(input("Enter number : "))
number_2 = int(input("Enter number : "))
if number_1 and number_2 > 20: print("YES")
else: print("NO")
49. Write a program that takes two numbers and displays the larger one.
number_1 = int(input("Enter Number :"))
number_2 = int(input("Enter Number :"))
print(max(number_1, number_2))
50. Write a program that takes the number of canned goods and determines how many full cartons of 6 can be made and how many cans will be left without a carton.
numberOfCans = int(input("Enter The Number Of Cans : "))
print("cartons : ", numberOfCans // 6,"\n\
Remnants : ", numberOfCans%6)
51. Write a program that keeps taking numbers from the user until zero is entered. Then, it calculates and prints the average of the entered numbers (excluding zero from the calculation).
sumVar = 0
countVar = 0
while True:
userNumbers = int(input("Enter Numbers : "))
if userNumbers == 0: break
else:
countVar+=1
sumVar+=userNumbers
print("Avg is :", sumVar//countVar)
52. Write a program that takes two numbers and determines how many multiples of 7 exist between them.
number_1 = int(input("Enter Number : "))
number_2 = int(input("Enter Number : "))
for i in range(number_1, number_2+1):
if i % 7 == 0:
print(i, end= ' ')
53. Write a program that takes four numbers. If an even number of them are multiples of 3, print “Yes”.
##step -> 1
count = 0
for i in range(1, 5):
numbers = int(input("Enter Numbers : "))
if numbers % 3 == 0:
count+=1
print("YES") if count % 2 ==0 else print("NO")
##step -> 2
numbersList = []
appendList = []
for i in range(1, 5):
numbers = int(input("Enter Numbers : "))
numbersList.append(numbers)
for i in numbersList:
if i % 3 == 0:
appendList.append(i)
numbersList.remove(i)
for i in appendList:
for j in numbersList:
if i and j %3 == 0:
print(i,"and",j, "-> YES")
break
54. Write a function that takes a number as an input parameter and prints its reverse as output.
def reverse_number(n):
if len(n) == 1:
return int(n)
return int(n[::-1])
n = input("Enter number : ")
print(reverse_number(n))
55. Write a program that takes a number as input and determines whether it is even or odd.
n = int(input("Enter Your Number : "))
print("number is Even!!") if n %2 == 0 else print("number is Odd!!")
56. Write a program that takes the radius of a circle as input, calculates its area and circumference, and prints the results.
radius = eval(input("Enter The Radius of The Circle : ")) ## شعاع
area = ((radius**2)*3.14) ## مساحت
circumference = ((3.14*2)*radius) ## محیط
print(f"area is : {area}\ncircumference is : {circumference}")
57. Write a program that takes a number as input and displays a message if it is not a three-digit number.
##step -> 1
userNumber = [int(i) for i in input("Enter Number : ")]
print("Yes") if len(userNumber) == 3 else print("NO")
##step -> 2
i = 1
userNumber = int(input("Enter Number : "))
while userNumber >= 10**i:
i+=1
if i == 3:
print("YES")
else:
print("NO")
58. Write a program that takes a list of numbers and displays them in descending order.
lst = []
user_input = int(input("Specify The Number Of Numbers : "))
for i in range(1, user_input+1):
n = int(input("Enter Numbers : "))
lst.append(n)
lst.sort()
lst.reverse()
print(lst)
59. Write a program that keeps taking numbers as input until the user enters -1 and then displays the sum of the entered numbers.
sum = 0
while True:
n = int(input("Enter Number : "))
if n < 0: break
else: sum += n
print(f"sum is : {sum}")
60. Write a program that takes your age in years, months, and days as input and converts it into minutes.
year = int(input("Enter years : "))
mounths = int(input("Enter mounths : "))
day = int(input("Enter days : "))
yourYears = ((((year*12)*30)*1440))
yourMounths = ((mounths*30)*1440)
yourDays = (day*1440)
print("you have lived","[",yourYears+yourMounths+yourDays,"]","minutes so far!!!")
61. Write a program that asks for the lengths of the three sides of a triangle and determines whether it is an isosceles, equilateral, or scalene triangle.
sideSet = set()
for i in range(1, 4):
Side = int(input("Enter The Side 1 : "))
sideSet.add(Side)
if len(sideSet) == 1:
print("equilateral triangle")
elif len(sideSet) == 2:
print("isosceles triangle")
else:
print("scalene triangle")
62. Write a function that takes two numbers as input and returns their sum as output.
def Num(a, b):
return a + b
num1 = int(input("Enter Number : "))
num2 = int(input("Enter Number : "))
print(Num(num1, num2))
##step -> 2
num = lambda a, b: a + b
num1 = int(input("Enter Number : "))
num2 = int(input("Enter Number : "))
print(num(num1, num2))
63. Write a program that takes a number as input in the main function, calculates the largest digit of the number in a separate function, and then displays the result in the main function.
# step -> 1
def max_number(a): return max(a)
n = [int(i) for i in input("Enter Number : ")]
print(max_number(n))
# step -> 2
max_number = lambda a : max(a)
n = [int(i) for i in input("Enter Number : ")]
print(max_number(n))
64. Write a function that:
def get_number():
for i in range(5):
n = eval(input("Enter score : "))
if n in range(17, 21):
print(f"{n} ---> (A)")
elif n in range(15, 18):
print(f"{n} ---> (B)")
elif n in range(12, 16):
print(f"{n} ---> (C)")
elif n in range(0, 12):
print(f"{n} ---> (D)")
else:
print("Error!!! Enter Number Between 0 - 20")
get_number()
65. Ali has a large number of books and wants to pack them in sets of 4.
Write a program that: Takes the number of books as input from the user. Determines how many full packs of 4 books can be made. Calculates how many books will remain unpacked.
books = int(input("Enter The Number Of Your Books : "))
print(f"packs : {books//4} and left over : {books % 4}")
66. Write a program that takes a number as input, calculates its factorial, and prints the result.
##step -> 1 with while loop
n = eval(input("Enter yor number : "))
i = 1
factorial = 1
while i <= n:
factorial*=i
i+=1
print(factorial)
##step -> 2 with math library
from math import factorial
n = eval(input("Enter yor number : "))
print(factorial(n))
67. Write a program that prints the two-digit multiples of 5.
for i in range(100):
if i % 5 == 0:
print(i, end=' ')
68. Write a program that generates the following output.
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
row = 7
for i in range(1, row + 1):
for j in range(1, row + 1):
print(j, end = " ")
print()
row -= 1
69. Write a program that takes a 5-digit number as input and prints its reverse without using functions like reverse().
n = input("Enter 5-digit number : ")
print(int(n[::-1]))
70. Write a simple calculator that takes two numbers as input and then allows the user to choose one of the operators (+, -, //, *) to get the desired result.
try:
while True:
x = eval(input("Enter Number 1 : "))
choice = input("addition\t [ + ]\nminus\t\t [ - ]\nmultiple\t [ * ]\ndivision\t [ // ]\n")
y = eval(input("Enter Number 2 : "))
if choice == "+":
print(x + y)
elif choice == "-":
print(x - y)
elif choice == "*":
print(x * y)
elif choice == "//":
print(x // y)
to_continue = input("Do you want to continue ? (y/n) : ")
if to_continue == "n":
break
except ZeroDivisionError as error:
print(error)
71. Write a program that prints the following pattern:
1
1 2
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
row = 7
for i in range(1, 7):
for j in range(1, i+1):
print(j, end=' ')
print()
for k in range(1, 7):
row-=1
for h in range(1, row):
print(h, end=' ')
print()
72. Write a program that takes a string as input and removes all spaces from it.
join_string = ''.join(input("Enter Your String : ").split())
print(join_string)
73. Write a program that takes a string as input, checks for vowels (a, e, i, o, u), prints them if found, and also displays their frequency.
counter = dict()
letters = ['A', 'a', 'I', 'i', 'U', 'u', 'E', 'e', 'O', 'o ']
user_input = [i for i in input("Enter Your Strings : ")]
for i in letters:
for j in user_input:
if i == j:
if i in counter:
counter[i]+=1
else:
counter[i]=1
print(counter)
74. Write a program that receives a natural number NN and determines how many of its digits are even, how many are odd, and how many are zero.
user_number = [int(i) for i in input("Enter Number : ")]
even = [even for even in user_number if even % 2 == 0]
odd = [odd for odd in user_number if odd % 2 != 0]
zero = [zero for zero in user_number if zero == 0]
print(f"even {len(even)} : {even}\nodd {len(odd)} : {odd}\nzero {len(zero)} : {zero}")
75. Write a program using a single for loop that outputs even numbers from 30 to 1 in descending order and odd numbers from 1 to 30 in ascending order.
even_list = []
odd_list = []
for i in range(1, 30 + 1):
even_list.append(i) if i % 2 == 0 else odd_list.append(i)
odd_list.reverse()
print(f"even numbers : {even_list}")
print(f"odd numbers : {odd_list}")
76. Write a program that takes two numbers as input and raises the first number to the power of the second number.
# step 1
x = int(input("Enter first number : "))
y = int(input("Enter second number : "))
z = x ** y
print(z)
# step 2
x = int(input("Enter first number : "))
y = int(input("Enter second number : "))
z = pow(x, y)
print(z)
77. Write a program that takes a two-digit number as input and:
def get_number(n):
for i in range(1, n):
print(i, end = " ")
print()
for i in range(11, n):
if i % 2 != 0:
print(i, end = " ")
print()
for i in range(10, n):
if i % 2 == 0:
print(i, end = " ")
get_number(int(input("Enter 2-digit nymber : ")))
78. Write a program that takes a string as input and checks if it is a palindrome.
(A palindrome is a word or phrase that reads the same backward as forward, such as “level.”)
st = input("please enter a string : ")
if st == st[::-1]:
print("palindrome")
else:
print("not palindrome")
79. Write a program that takes a temperature in Fahrenheit or Celsius and converts it accordingly.
First, the program should ask the user whether they want to convert Fahrenheit to Celsius or Celsius to Fahrenheit. After the user makes a selection, the conversion should be performed.
print("fahrenheit or centigrade --> f/c")
userInput = input()
if userInput == "f":
f = int(input("Please Enter fahrenheit weather :"))
print((f-32)/1.8)
elif userInput == "c":
c = int(input("Please Enter centigrade weather :"))
print(c*1.8+32)
80. Ali wants to write a program for a university that sorts students’ names alphabetically.
The program will be used for attendance lists in classes with ten students.
How would you write the program if you were in his place?
name_list = []
for i in range(1, 11):
names = input("Enter names : ")
name_list.append(names)
sortList = name_list.sort()
for i in name_list:
print(i, end=' -- ')
81. Write a program that defines a function accepting a variable number of inputs; the inputs must be tuples and contain strings. The function should then check for palindromic strings and print those that are palindromes.
def palindrome(*tu):
for i in tu:
if i == i[::-1]:
print(f"palindrome worlds : {i}")
print(type(tu))
palindrome("level", "darsman", "madam", "python", "kayak")
82. Write a program that takes a variable number of numerical inputs and then prints them in sorted order.
# # step 1
def sort_numbers():
numbers = []
for num in range(5):
numbers.append(int((input("Enter Your Number : "))))
return sorted(numbers)
print(sort_numbers())
# # step 2
def sort_numbers(*n):
n = list(n)
n = sorted(n)
n = tuple(n)
return n
print(sort_numbers(2, 5, 7, 9, 10, 44, 3, 22))
# # step 3
print(sorted([eval(input(f"{x}. Enter number : ")) for x in range(1, 5+1)]))
83. Write a program that converts a two-dimensional array into a one-dimensional array.
l1 = [[1, 2, 3], [5, 6, 7]]
l2 = []
for i in l1:
for j in i:
l2.append(j)
print(l2)
84. Write a program that takes the number of sides as input and prints the sum of its interior angles.
Input:
12
Output:
1800
Input:
4
Output:
360
number_of_sides = int(input("Enter the number of sides : "))
internal_sides = 180 * (number_of_sides - 2)
print(internal_sides)
85. Write a program that takes a list of numbers, checks all possible triplets, and prints the ones whose sum equals 30.
import itertools
l1 = []
user_input = int(input("How many numbers does your list have? "))
for i in range(user_input):
l1.append(int(input("Enter Your Numbers : ")))
l2 = list(itertools.combinations(l1, 3))
for i in l2:
if sum(i) == 30:
print(f"{i} : sum : {sum(i)}")
86. Write a program that prints all two-digit odd numbers in descending order.
# step 1
i = 101
while i >= 2:
i-=2
print(i, end=' ')
# step 2
for i in range(99, 10, -2):
print(i, end = " ")
87. Write a program that prints all two-digit odd numbers in descending order. If both digits of a number are the same and odd, store them in a list instead of printing, and display the list at the end.
lst = []
for i in range(99, 10, -2):
if str(i)[0] == str(i)[1]:
lst.append(i)
continue
print(i, end = " ")
print()
print(lst)
88. Write a program that takes a number as input and prints that many stars (*).
star_number = int(input("Please Enter Yur Number : "))
print(star_number * "* ")
89. Write a program that:
"Done" is entered.userInput = []
numbers = []
while True:
# Take input and append it to userInput variable
userInput.append(input(("Enter Your Number : ")))
if "Done" in userInput:
# Pop() the last input from the variable before breaking
userInput.pop()
break
# Convert strings to numbers with the eval() function
for i in userInput:
numbers.append(eval(i))
print(f"sum is : {sum(numbers)}")
print(f"max is : {max(numbers)}")
print(f"min is : {min(numbers)}")
print(f"avrage is : {sum(numbers)/len(numbers)}")
90. Write a program that prints the three-digit multiples of both 3 and 5.
three = [i for i in range(1000) if i % 3 == 0]
five = [i for i in range(1000) if i % 5 == 0]
print(f"For Three : {three}")
print(f"For Five : {five}")
91. Write a program that takes two numbers from the user and performs addition, subtraction, multiplication, and division on them.
def calculator(x, y):
print(f"Total is : {x + y}")
print(f"Subtraction is : {x - y}")
print(f"Multiplication is : {x * y}")
print(f"Division is : {x / y}")
x = eval(input("Enter x : "))
y = eval(input("Enter y : "))
calculator(x, y)
92. Write a program that takes a string expression like 45+23 as input and performs the calculation based on the operator in the expression (operators include +, -, *, /).
num = eval(input("Enter Number --> for example --> 23 + 45 : "))
print(num)
93. Write a program that takes two numbers as input and prints the Fibonacci sequence from the first number to the second number.
count = 2
x = int(input("from the number : "))
y = int(input("up to the number : "))
i = 0
j = 1
print(i)
print(j)
for num in range(x, y - 1):
fibo = i + j
print(fibo)
i = j
j = fibo
count += 1
94. Write a program that first takes the number of courses a student has, then receives the credit hours and grade for each course, and finally calculates the student’s GPA.
numberOfLessons = int(input("Enter the number of lessons : "))
nameOfCourse = []
totalScores = 0
theUnit = 0
for i in range(numberOfLessons):
nameOfCourse.append(input("Enter Name Of Course : "))
score = float(input("Enter The Score : "))
unit = int(input("Enter The Unit : "))
totalScores += (score * unit)
theUnit += unit
print("Your Average Is : ",totalScores / theUnit)
95. Write a program that takes the user’s birth year and the current year as input and calculates how many years, months, days, hours, minutes, and seconds they have lived.
from datetime import date
yearOfBirth = int(input("In What Year Were You Born? "))
toDay = date.today()
yourAgeInYears = toDay.year - yearOfBirth
yourAgeInMonths = yourAgeInYears * 12
yourAgeInWeeks = ((yourAgeInMonths * 30) // 7)
yourAgeInDay = yourAgeInMonths * 30
yourAgeInHours = yourAgeInDay * 24
yourAgeInMinutes = yourAgeInHours * 60
yourAgeInSeconds = yourAgeInMinutes * 60
print(f"your Age In Years {yourAgeInYears}")
print(f"your Age In Months {yourAgeInMonths}")
print(f"your Age In Weeks {yourAgeInWeeks}")
print(f"your Age In Day {yourAgeInDay}")
print(f"your Age In Hours {yourAgeInHours}")
print(f"your age in minutes {yourAgeInMinutes}")
print(f"your Age In Seconds {yourAgeInSeconds}")
96. Maryam is an economical girl who wants to calculate the cost of her SMS messages.
According to the tariff of the operator she uses:
The base cost of each SMS is 100 Rials.
For every 24 English characters, an additional 274 Rials is added.
If the character count for an additional charge is less than 24, the cost is waived (rounded down).
Input: A text message that Maryam wants to send.
Output: The final cost of the SMS in Tomans, displayed as a decimal number.
Example:
Input:
slm bbkhshid shoma?
Output:
10.0
from math import floor
initialCost = 100
costPerSubsequentCharacters = 274
sms = input('Enter Your Massage : ')
smsList = list(sms)
chrList = []
for chr in smsList:
if chr.isalpha():
chrList.append(chr)
smsCost = (100 + floor(len(chrList) // 24) * 274) // 10
print(f"The Characters Of This Message : {len(chrList)}")
print(f"The Final Cost Is : {smsCost} Tooman")
97. Define a class for the geometric shape of a rectangle, with two methods to calculate its perimeter and area.
class Rectangle:
def __init__(self, length, width):
self.lemgth = length
self.width = width
def parimeter(self):
return 2 * (self.lemgth + self.width)
def area(self):
return self.lemgth * self.width
length = int(input("enter length : "))
width = int(input("enter width : "))
rect = Rectangle(length, width)
print(f"parimeter : {rect.parimeter()}")
print(f"area : {rect.area()}")
98. Write a program that takes 5 grades of a student as input, calculates their average, and prints it. Additionally, if the average is greater than 17, print Excellent; if it is between 15 and 17, print Good; if it is between 10 and 15, print Poor; and if it is less than 10, print Very Poor.
num_list = [int(input(f"Enter grade {x} : ")) for x in range(1, 6)]
avg = sum(num_list) / len(num_list)
print(f"avg is : {avg}")
if 17 < avg <= 20:
print('Ecellent')
elif 15 < avg <= 17:
print('Medium')
elif 10 < avg <= 15:
print('Bad')
elif avg <= 10:
print('Very bad')
99. Write a function that is polymorphic and can accept up to 3 arguments.
def func_name(x = 0, y = 0, z = 0):
# if statements
return x + y + z
print(func_name(2, 4, 6))
print(func_name(2, 4))
print(func_name(2))
print(func_name())
100. تابعی که نمرات ده دانش آموز را بگیرد و میانگین را محاسبه کند و کوچکترین و بزرگترین را چاپ کند.
def student_avg(n):
print(sum(n) / len(n))
print(f"Max is : {max(n)} & Min is : {min(n)}")
score = []
for num in range(10):
score.append(int(input("Enter Score : ")))
student_avg(score)
101. Write a program that takes the grades of ten students and indicates which ones passed and which ones failed. The passing grade is above 10.
studentInfo = {}
for i in range(10):
name = input("Enter the student's name : ")
score = int(input("Enter the student's Score : "))
studentInfo[name] = score
acceptedStudents = [x for x in studentInfo if studentInfo[x] >= 10]
rejectedStudents = [x for x in studentInfo if studentInfo[x] < 10]
print(f"Accepted students : {acceptedStudents}")
print(f"Rejected Students : {rejectedStudents}")
102. Write a program that reads a three-digit number from the input and prints twice its reverse in the output. Ensure that the input is definitely a three-digit number, and the output should be the number multiplied by 2.
number = input("Enter a three-digit number : ")
if int(number) >= 100:
reverseNumber = int(number[::-1])
print(f"Reverse Number is : {reverseNumber}")
print(f"Reverse Number * 2 = {reverseNumber * 2}")
else:
print(f"Your Number is : {number}")
print("Please Enter Three-Digit Number And Try Again!")
103. Write a program that takes a number from the user, calculates the count of its digits, and then calculates the sum of its digits.
n = input("Enter number : ")
list_number = list(n)
print(f"number of digits : {len(list_number)}")
sum_num = 0
for i in list_number:
sum_num += int(i)
print(f"Sum is : {sum_num}")
104. Write a program that produces the following output.
A
AB
ABC
ABCD
ABCDE
ABCDEF
# step 1
n = int(input("How many times should i move? "))
i = 1
temp = ""
ch = chr(65)
while i <= n:
temp += ch
print(temp, "\n")
ch = chr(65 + i)
i += 1
# step 2
from string import ascii_uppercase
n = int(input("How many times should i move? "))
for i in range(1, n + 1):
for j in range(i):
print(ascii_uppercase[j], end="")
print("\n")
105. Write a program that takes the birth date in the Gregorian (Western) calendar as input and displays the user’s age in the output.
from datetime import date
your_birth = int(input("Enter the year of birth : For example : 1999 ---> "))
date_time_now = date.today()
i = 0
while your_birth < date_time_now.year:
your_birth += 1
i += 1
print(f"your age : {i}")
106. Write a program that, upon receiving a positive odd number, prints the corresponding alphabet triangle.
input_number = int(input('Enter Num : '))
if input_number % 2 == 1 and input_number > 0:
for i in range(input_number):
for j in range(i + 1):
print(chr(j + 97), end = " ")
print()
else:
print(f"Enter an odd number or a number greater than zero!!! And Try Again...")
107. In 2013, the first year after 1987 that does not have repeating digits. You are asked to write a program that takes a year as input from the user and prints the first year without repeating digits after that year.
input_year = int(input(" Enter Year : "))
listOfInputYear = list(str(input_year))
for i in range(input_year):
input_year += 1
if len(set(str(input_year))) == 4:
print(input_year)
break
108. Write a program that outputs the number of days between two dates.
Example:
The days between the dates 2025-06-01 and 2025-06-09 are equal to 8 days.
from datetime import datetime
# example --> 2025-06-01 - 2025-06-09
date_format = '%Y-%m-%d'
first_day = datetime.strptime("2025-06-09", date_format)
second_day = datetime.strptime("2025-06-01", date_format)
print (f"days : {(first_day - second_day).days}")
109. Write a program that combines the elements of the two lists below into separate tuples, and the condition for output is that only values greater than 0.9 are printed.
actions = ["write", "read", "walk", "sing", "laugh", "talk", "dance", "eat", "Whistling", "clap"]
values = [1.65227288, 1.33215619, -0.52259578, -0.67266119, 1.42021427, -0.4017421, 0.9653853, 1.09278474, 1.11503941, -0.44975633]
zip_list = zip(actions, values)
for i in zip_list:
if i[1] > 0.9:
print(i, end = " ")
110. Write a program that takes 10 numbers from the user and finds the smallest and largest among them.
num_list = []
n = int(input("How many numbers should I get? "))
for num in range(1, n + 1):
num_list.append(int(input(f"{num}. Enter numbers : ")))
print(f"Max is : {max(num_list)}\nMin is : {min(num_list)}")
111. Write a program that prints the first 10 multiples of 7 that are greater than 200.
# step 1
i = 200
counter = 1
while counter <= 10:
i += 1
if i % 7 == 0:
print(i, end = " ")
counter += 1
# step 2
counter = 0
for i in range(200, 300):
if counter == 10:
break
else:
if i % 7 == 0:
print(i, end = " ")
counter += 1
112. Write a program that takes an integer n as input and prints a right-angled triangle of stars in the output, where n is the number of rows in the triangle. The direction of the triangle should be like this: 📐.
# step 1
n = int(input("Entr row : "))
for row in range(n + 1):
for col in range(row):
print("*", end = " ")
print()
# step 2
n = int(input("Entr row : "))
for row in range(n + 1):
print(row * "* ")
113. Write a program that takes 10 numbers, stores them in a list, and prints them from end to beginning.
# step 1
def reverse_list():
lst = []
for num in range(1, 11):
lst.append(int(input(f"Enter numbers {num} : ")))
return str(lst[::-1])
print(reverse_list())
# step 2
numList = []
i = 0
while i < 10:
n = int(input("Enter number : "))
numList.append(n)
i += 1
numList.reverse()
print(numList)
114. برنامه ای بنویسید که از ورودی انواع نوع داده ای را بگیرد و در یک لیست ذخیره کند و سپس تمامی انواع داده ای رشته ای را به خروجی ببرد.
lst = []
for st in range(10):
n = input("Enter input : ")
if n.isalpha():
lst.append(n)
else:
continue
print(f"Your list : {lst}")
115. Write a program that takes several positive numbers from the user and calculates their average (using for and break). That is, when a negative number is entered, the loop should exit.
counter = 0
numbers = 0
sumNum = 0
for i in range(1000):
numbers = int(input("Enter number : "))
if numbers < 0:
break
sumNum += numbers
counter += 1
print(f"avrage : {sumNum / counter}")
116. Panjali is one of the best programmers in a company in Miami, USA, and is about to write the following program for her friend Alex, who has recently started programming classes. The program is as follows:
There are two lists of integers, each with 10 elements, where each list contains both duplicate and non-duplicate numbers:
Now, imagine you are Panjali and want to use a loop or loops to output the duplicate elements of both lists into the first list and the non-duplicate elements into the second list, sorted in order.
list_1 = [1,2,3,4,4,5,6,1,12,34]
list_2 = [3,5,4,7,7,9,12,9,6,10]
temp_1 = list_1 + list_2
print(sorted(set(temp_1)))
temp_2 = []
for i in list_1:
if i in list_2:
temp_2.append(i)
print(sorted(set(temp_2)))
117. Write a program that takes a list of any size from the user, finds the largest and smallest elements, removes them from the list, and calculates the average of the remaining numbers (using a function).
def del_min_max(n):
numList = []
for num in range(1, n + 1):
numList.append(int(input(f"{num}. Enter numbers : ")))
print(f"list before del min & max --> {numList}")
print(f"Max is : {max(numList)}\tMin is : {min(numList)}")
numList.remove(max(numList))
numList.remove(min(numList))
print(f"list after del min & max --> {numList}")
print(f"List Avg is : {sum(numList) / len(numList)}")
n = int(input("How many? "))
del_min_max(n)
118. Write a program that takes a two-digit number as input, doubles it, and then displays its reverse in the output.
number = int(input("Entr number : "))
print(f"mul : {number} * 2 = {number * 2}\nReverse number : {str(number * 2)[::-1]}")
119. Write a program that takes a three-digit number as input. If the most significant digit and the least significant digit are equal, print the number itself; otherwise, print the reverse of the number.
try:
number = int(input("Enter a three-digit number : "))
except ValueError as error:
print(f"ValueError : {error}")
else:
if str(number)[0] == str(number)[2]:
print(f"number : {number}")
else:
print(f"{number} ---> {str(number)[::-1]}")
120. Write a program that outputs the second list based on the index numbers provided in the first list.
list_1 = [3, 5, 6, 8, 9, 12]
list_2 = ["a", "b", "c", "p", "e", "y", "t", "", "h", "o", "w", "i", "n", "l"]
# # step 1
list_1 = [3 ,5 , 6, 8, 9, 12]
list_2 = ["a", "b", "c", "p", "e", "y", "t", "", "h", "o", "w", "i", "n", "l"]
indexList = []
for i in list_1:
indexList.append(list_2[i])
print("".join(indexList))
# # step 2
def index_list():
list_1 = [3 ,5 , 6, 8, 9, 12]
list_2 = ["a", "b", "c", "p", "e", "y", "t", "", "h", "o", "w", "i", "n", "l"]
indexList = []
for i in list_1:
indexList.append(list_2[i])
return "".join(indexList)
print(index_list())
121. Write a function that takes a list and a number as input, adds the number to each item in the list that is a number, and then displays the list.
def sum_list(n):
numList = []
number = int(input("How many do you want? "))
for i in range(1, number + 1):
numList.append(input(f"{i}. Enter number : "))
for j in numList:
if j.isdigit():
print(int(j) + n, end = " ")
sum_list(20)
122. Write a program that takes a number from the user and determines whether the number is a power of 3 or not.
n = int(input("Enter number : "))
for i in range(1, n + 1):
if (i**3) == n:
print("Yes, This number is a power of 3")
print(f"{n} is : {i} ** 3 ")
break
else:
print("This number is (NOT) a power of 3")
123. Write a program that takes several numbers from the user and calculates their sum and average until the user enters ‘no’.
numList = []
while True:
num = input("Enter number : ")
if num == "no":
break
numList.append(int(num))
print(f"Sum : {sum(numList)}")
print(f"Avg : {sum(numList) / len(numList)}")
124. Write the following algorithm in Python:
userName = input("Enter user name : ")
try:
password = int(input("Enter password : "))
if userName == "teacher" and password == 12345:
print("welcome to teacher panel...")
elif userName == "student" and password == 12345:
print("welcome to students panel...")
else:
print("Username or password is wrong...")
except ValueError as error:
print(error)
125. Write two programs: in the first program, take the user’s birth year and output their age, and in the second program, take the birth year in the Jalali calendar and display the age in the output.
# Age calculation based on Gregorian calendar
import datetime
birthDay = int(input("Enter your year of birth : "))
today = datetime.datetime.now()
age = today.year - birthDay
print(f"today is : {today.year} and your {age} years old")
# Age Calculation based on Jalali calendar
import jdatetime
birthDay = int(input("Enter your year of birth : "))
today = jdatetime.datetime.now()
age = today.year - birthDay
print(f"today is : {today.year} and your {age} years old")
126. Write a program that reads a number from the input and prints the largest digit in it.
# step 1
n = input("Enter number : ")
if n.isdigit():
print(max(list(n)))
else:
print("enter a number and try again...")
# step 2
n = input('Enter Number : ')
print(max(list(n)))
127. Write a program that performs the multiplication of two numbers without using the multiplication operator.
first_number = eval(input("Enter number : "))
secend_number = eval(input("Enter number : "))
i = 0
mul = 0
while i < secend_number:
mul += first_number
i += 1
print(mul)
128. Write a program that outputs the two smallest elements of a list.
lst = [1, 8, 12, 5, 4, 76, 28, 5, 6, 1, 7, 9, 8]
minLst = []
setLst = set(lst)
for i in range(2):
minLst.append(min(setLst))
setLst.remove(min(setLst))
print(f"Two small list elements : {minLst}")
129. Write a program that finds all numbers divisible by 7 but not multiples of 5. The resulting numbers should be printed in a single line, separated by commas.
Additional details:
The range of numbers should be between 100 and 200.
# step 1
lst = []
for i in range(100, 201):
if (i%7==0) and (i%5!=0):
lst.append(str(i))
print(",".join(lst))
# step 2
print([x for x in range(100,200) if x%7==0 and x%5!=0])
130. Company X, with 73 employees, plans to increase the salary of its married employees, who all receive the same salary, by 5%.
Calculate the number of married employees and output it.
Calculate how much capital needs to be injected into the company’s treasury for the salary increase of married employees.
Additional notes:
a. Single and married employees in this question are represented by odd and even numbers, respectively.
b. The base salary for married employees is 10 million Tomans
def numbers_of_married(company):
married = 0
for person in range(1, company+1):
if (person%2==0):
married += 1
return married
def salary_calculation(married):
companyTreasury = ((married*10000000) * 0.05)
return companyTreasury
company = 73
print(f"The number of married people working in this company : {numbers_of_married(company)}")
print(f"The amount that should be considered for the treasury of the company : {salary_calculation(numbers_of_married(company))}")
131. Write a program that accepts a sequence of comma-separated numbers from the console and creates a list and a tuple containing each number.
Assume the following input is provided to the program:
34,67,55,33,12,98
Then the output should be as follows:
[‘34’, ‘67’, ‘55’, ‘33’, ‘12’, ‘98’]
(‘34’, ‘67’, ‘55’, ‘33’, ‘12’, ‘98’)
# step 1
tuple_numbers = tuple(eval(input("Enter numbers : ")))
print(tuple_numbers)
list_numbers = list(eval(input("Enter numbers : ")))
print(list_numbers)
# step 2
number = input("Enter values seprate with , : ").split(',')
print(tuple(number))
print(list(number))
132. Write a program that reads a string and, using a function, calculates and prints the sum of the digits present in the string.
def sum_num():
sum_of_numbers = 0
n = input("Enter : ")
for ch in n:
if ch.isdigit():
sum_of_numbers += int(ch)
print(sum_of_numbers)
sum_num()
133. Write a program that reads a string from the input and displays the count of digits in the string.
n = input("Enter number : ")
numbers = [int(x) for x in n if x.isdigit()]
print(f"The number is {len(numbers)} digits")
134. If we have a list: [1, 1, 2, 5, 6, 6, 8, 8, 8, 7, 7], and we want to extract the numbers that are repeated exactly twice, what should we do?
lst = [1,2,3,4,5,6,5,3,1,8,9,9,9]
for i in range(len(lst)+1):
if lst.count(i) == 2:
print(f"There are two of this item --> {i}")
135. Write a program that takes an integer with an unspecified number of digits from the user and prints each digit as many times as its value.
def print_numbers():
n = list(input("Enter number : "))
for i in n:
print(f"({i}). ", end = "")
for j in range(1, int(i)+1):
print(j, end = " ")
print()
print_numbers()
136. Write a program that takes a number as input and generates a dictionary within the range of that number, where the dictionary contains {i: i*i}.
Assume the input 8 is provided to the program; then the output should be as follows:
{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64}
In your program, include error handling for possible input errors.
try:
number = int(input("Enter number : "))
dic = {i : i*i for i in range(1, number + 1)}
print(dic)
except ValueError as error:
print(error)
137. Write a program that takes the number of students in a class as input, receives the GPA of each student as input, calculates the average GPA of the class, and prints it.
students = int(input("Number of students : "))
avg = 0
for i in range(1, students+1):
avg += eval(input(f"{i}. Enter Avg : "))
print(f"Avg of the whole class : {avg / students}")
138. Write a program that first creates three dictionaries with initial values as shown below, then combines these three dictionaries into a fourth dictionary, stores it, and prints it.
dic1 = {"ali":34,"mehdi":42,"reza":27}
dic2 = {3:3000,5:12000}
dic3 = {100:True,200:False,500:False}
# step 1
dic1 = {"ali":34,"mehdi":42,"reza":27}
dic2 = {3:3000,5:12000}
dic3 = {100:True,200:False,500:False}
dic4 = dic1 | dic2 | dic3
print(dic4)
# step 2
dic1 = {"ali":34,"mehdi":42,"reza":27}
dic2 = {3:3000,5:12000}
dic3 = {100:True,200:False,500:False}
dic4 = dict()
for dic in (dic1, dic2, dic3):
dic4.update(dic)
print(dic4)
139. If the students’ grades are stored in a dictionary as shown below, write a program that adds one unit (one grade) to each student’s grade and prints the resulting dictionary. (Do not add to grades above 19, and preferably use list comprehension).
students = [
{"ali": [12.5, 16.75 ,19, 8.25, 13.75]},
{"mehdi": [18.75, 16.5, 19.25, 17.75, 18.25, 20]},
{"sahar":[17, 13.5, 16, 12.25, 14, 19.25]}
]
students = [
{"ali": [12.5, 16.75 ,19, 8.25, 13.75]},
{"mehdi": [18.75, 16.5, 19.25, 17.75, 18.25, 20]},
{"sahar":[17, 13.5, 16, 12.25, 14, 19.25]}
]
def print_items(lst):
for i in lst:
for j in i:
for k in j:
print(k, end = "\t")
print()
students_items = [[[k + 1 if k < 19 else k for k in j] for j in i.values()] for i in students]
print_items(students_items)
140. If the students’ information is stored in a list of dictionaries as shown below, display the average GPA and the oldest age.
student = [
{"id":1,"name":"ali","avg":15.5,"age":23},
{"id":2 ,"name":"reza","avg":16,"age":19},
{"id":3 ,"name":"mehdi","avg":19.25,"age":42}
]
student=[
{"id":1,"name":"ali","avg":15.5,"age":23},
{"id":2 ,"name":"reza","avg":16,"age":19},
{"id":3 ,"name":"mehdi","avg":19.25,"age":42}
]
# age & avg
print(f"(age & avg) - Average is : {max([((item['avg'] + item['age']) / 2) for item in student])}")
# max age
print(f"max age is : {max([(item['age']) for item in student])}")
# avg
print(f"avg is : {sum([((item['avg']) / 3) for item in student])}")
141. Write a program that takes 5 consecutive numbers as input in one line and then displays them in sorted order in the output.
# step 1 with function
def sort_numbers():
numbers = []
for num in range(5):
numbers.append(int((input("Enter Your Number : "))))
return sorted(numbers)
print(sort_numbers())
# step 2 with list comprehension
print(sorted([eval(input(f"{x}. Enter number : ")) for x in range(1, 5+1)]))
142. Write a program that takes the grades of several students from the user. If the entered grade is between 0 and 70, display ‘fail’; if the entered grade is between 71 and 80, display ‘good’; if the entered grade is between 81 and 90, display ‘very good’; and if the entered grade is between 91 and 100, display ‘excellent’.
try:
students = int(input("number of students : "))
for i in range(1, students + 1):
score = float(input(f"{i}. Enter Score : "))
if score < 0 or score > 100:
print("The entered number < 0 or number > 100")
elif score in range(0, 71):
print("Fail")
elif score in range(71, 81):
print("Good")
elif score in range(81, 91):
print("Very Good")
elif score in range(91, 101):
print("Excellent")
except RuntimeError as error:
print(error)
except ValueError as error:
print(error)
143. Without using modules:
Write a program using a recursive function that can calculate the factorial of a number entered by the user.
Also, write the same program using a Generator Function.
# step 1
# recursive function
def factorial(n):
if n == 0 or n == 1:
return 1
return n * factorial(n - 1)
print(factorial(4))
# step 2
# Generator fanction
def factorial():
x = 1
y = 1
while True:
x *= y
yield x
y += 1
fact = factorial()
for i in range(10):
print(next(fact))
144. Write a program that accepts a sequence of space-separated words as input and prints the words after removing all duplicate words and sorting them alphabetically.
Assume the following input is provided to the program:
python is the best programming language python is a simple language
# step 1
words = "python is the best programming language python is a simple language"
set_words = set(words.split(" "))
print(" ".join(sorted(set_words)))
# step 2
print(" ".join(sorted(set(input("Enter words seprate with , : ").split(' ')))))
145. Define a class that has two methods:
get_string : to receive a string from input
print_string : to print the input string in uppercase letters
class UpperString:
def get_string(self):
return input("Enter a string : ")
def print_string(self):
return self.get_string().upper()
string = UpperString()
print(string.print_string())
146. Write a program that takes a sequence of comma-separated words as input and prints the words in alphabetical order in a comma-separated sequence.
Assume the following input is provided to the program:
without, hello, bag, world
Then the output should be as follows:
bag, hello, without, world
words = input("Enter words (for example : a, b, c, d) : ")
split_space = words.split(" ")
join_split_space = "".join(split_space)
split_comma = join_split_space.split(",")
print(", ".join(sorted(split_comma)))
147. Write a program that outputs all numbers between 2000 and 4001 where all digits are even.
The resulting numbers should be printed in a single line, separated by commas.
Sample output: …2006, 2004, 2002
# step 1
lst = []
for item in range(2000, 4001):
if int(str(item)[0]) % 2 == 0 and int(str(item)[1]) % 2 == 0 and \
int(str(item)[2]) % 2 == 0 and int(str(item)[3]) % 2 == 0:
lst.append(item)
print(lst)
# step 2
lst = [x for x in range(2000, 4000) if x % 2 == 0]
print(list(
filter(
lambda x : str(x)[0] in ('0','2','4','6','8') and str(x)[1] in ('0','2','4','6','8') and
str(x)[2] in ('0','2','4','6','8') and str(x)[3] in ('0','2','4','6','8'),
lst
)
))
148. Using list comprehension, write a program that takes two digits X and Y as input and generates a two-dimensional array.
Assume the following inputs are given to the program:
3,5
Also, write a function that displays each element of the output array on a new line.
# for array print
def print_array(array):
for row in range(1, x + 1):
print()
for coll in range(1, y + 1):
print(coll, end = "\t")
x = int(input("Enter x : ")) # 3
y = int(input("Enter y : ")) # 5
#comprehension list
comperhension_array = [[j for j in range(1, y+1)]for i in range(1, x+1)]
#calling function
print_array(comperhension_array)
149. Write a program that takes a set ‘a’ containing an n-digit number and determines the count of digits (n) using a while loop without any additional elements (we can also use ‘function’).
def number_of_digits(n):
i = 0
while n != 0:
n = n // 10
i += 1
return i
a = 97867564534231
print(f"number of digits : {number_of_digits(a)}")
150. Write a program that takes a password as input (containing both letters and numbers). If the input is correct, output it; if the input contains only numbers or only letters, the program should continue until a valid password is entered.
while True:
password = input("Enter your password : ")
if not password.isalpha() and not password.isdigit():
break
print("your password is not True. Please try again!")
print(f"password is True : {password}")
151. Write a list comprehension that takes a multi-digit number as input and outputs its largest digit.
print(max([int(i) for i in input("Enter Number : ")]))
152. Write a program that takes a 4-digit number as input, determines how many unique 4-digit numbers can be formed using its digits, and outputs those numbers.
import itertools
numbers = [int(x) for x in input("Enter 4 digits : ")]
num_list = list(itertools.permutations(numbers, 4))
counter = 0
for i in num_list:
print(i, end = "\t")
counter += 1
print(f"counter : {counter}")
153. Write a program that can use map() and filter() to create a list where each element is the square of an even number from the list [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].
Notes:
Use map() to create the list. Use filter() to filter elements of a list. You must use filter() inside map().
lst = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
print(list(map(lambda x: x * x, filter(lambda y: y % 2 == 0, lst))))
154. Write a filter that performs the following operation in just one line:
Output the odd numbers from the range 1 to 20.
print(list(filter(lambda x: x % 2 !=0, range(1, 21))))
155. برنامه ای بنویسید که یه عدد تصادفی از ۱ تا ۳۰ تولید کند؛
سپس در محدوده ی آن عدد لیستی از ارقام تولید کند و ارقام مثبت را به خروجی ببرد.
نکته:
برای حل این سوال از تابع فیلتر استفاده شود.
import random
print(list(filter(lambda x: (x%2==0), range(1, random.randint(1, 30) + 1))))
156. Write a program to generate and print another tuple containing only the even numbers from a given tuple.
Sample Output: Given Tuple: (1, 2, 3, 4, 5, 6, 7, 8, 9, 10) Second Tuple: (2, 4, 6, 8, 10)
Notes: The program must be written using the filter() function.
print(tuple(filter(lambda x: (x%2==0), range(1, int(input("What is the range of the tuple? "))+ 1))))
157. Write a program that generates a random number from 1 to 20; then creates a tuple within the range of that random number; if the length of the created tuple is even, output the first and second halves of the tuple separately; and if the length of the created tuple is odd, output the first half, second half, and the middle number separately.
import random
randNum = random.randint(1, 20)
tu = [tuple(x for x in range(1, randNum + 1))]
if len(tu[0]) == 1:
print(f"number one : {tu[0]}")
elif (len(tu[0])%2==0):
n = len(tu[0])//2
print("len is Even...")
print(f"first half : {tu[0][:n]}")
print(f"the second half : {tu[0][n:]}")
else:
n = len(tu[0])//2
print("len is Odd...")
print(f"first half : {tu[0][:n]}")
print(f"middle number : {tu[0][n:n+1]}")
print(f"the second half : {tu[0][n+1:]}")
158. Define a class with a generator method that can iterate through numbers divisible by 7 within the range of 0 and n.
class Generator:
def __init__(self, n):
self.n = n
def div_to_seven(self):
i = 1
while i <= self.n:
if (i%7==0):
yield i
i += 1
gen = Generator(100)
for item in gen.div_to_seven():
print(item, end = ", ")
159. Write a program that calculates the net balance of a bank account based on transaction records input by the user. The transaction format is shown as follows:
‘deposit’ means deposit and ‘withdraw’ means withdrawal.
Assume the following input is provided to the program:
deposit 300
deposit 300
withdraw 200
deposit 100
Then the output should be as follows:
Balance 500
from Khayyam import JalaliDate
while True:
deposit = eval(input("deposit amount : "))
withdraw = eval(input("withraw amount :"))
if withdraw > deposit:
print("The withdrawal amount is more than the balance...")
break
print(f"your account balance {deposit - withdraw}", JalaliDate.today())
userContinue = input("do you want to continue? (y/n) ")
if userContinue == "y":
continue
elif userContinue == "n":
break
else:
print("error")
160. Use list comprehension to square each odd number in a list. The list is entered as a sequence of comma-separated numbers.
Assume the following input is provided to the program:
1,2,3,4,5,6,7,8,9
Then the output should be as follows:
81, 49, 25, 9, 1
pow_list = [int(i)**2 for i in input("Enter numbers : ").split(",") if int(i)%2!=0]
print(pow_list)
161. Write a program that takes a sentence as input and counts the number of uppercase and lowercase letters.
Assume the following input is provided to the program:
‘pYthOn ProGraMmiNg’
Then the output should be as follows:
Uppercase letters 6
Lowercase letters 11
sentence = "pYthOn ProGraMmiNg".split(" ")
join_sentence = "".join(sentence)
upper_words = 0
lower_words = 0
for item in join_sentence:
if item == item.upper():
upper_words += 1
else:
lower_words += 1
print(f"Upper Words : {upper_words}")
print(f"Lower Words : {lower_words}")
162. Write a program that accepts a sentence and counts the number of letters, digits, and spaces.
Assume the following input is provided to the program:
‘python programming 123’
Then the output should be as follows:
Letters 17
Digits 3
Spaces 2
sentence = "python programming 123"
words = 0
numbers = 0
spaces = 0
for i in sentence:
if i.isalpha():
words += 1
elif i.isdigit():
numbers += 1
else:
spaces += 1
print(f"words : {words}")
print(f"numbers : {numbers}")
print(f"spaces : {spaces}")