Practice Top 30 Python Programming Questions on Lists Data Structure

Practice Top 30 Python Programming Questions on Lists Data Structure

Q1. Write a program to find the sum of all elements in a list.

Input:  
[1, 2, 3, 4, 5]  

Expected Output:  
Sum: 15

Q2. Write a program to find the maximum element in a list.

Input:  
[10, 25, 3, 47, 5]  

Expected Output:  
Maximum: 47

Q3. Write a program to find the minimum element in a list.

Input:  
[8, 15, 2, 9, 4]  

Expected Output:  
Minimum: 2

Q4. Write a program to count how many times a specific element appears in a list.

Input:  
List: [3, 1, 3, 7, 3, 9]  
Element: 3  

Expected Output:  
Count of 3: 3

Q5. Write a program to sort a list in ascending order.

Input:  
[8, 3, 1, 6, 2]  

Expected Output:  
Sorted list: [1, 2, 3, 6, 8]

Q6. Write a program to reverse a list.

Input:  
[5, 4, 3, 2, 1]  

Expected Output:  
Reversed list: [1, 2, 3, 4, 5]

Q7. Write a program to find the number of elements in a list.

Input:  
[12, 5, 9, 3, 6]  

Expected Output:  
Length of list: 5

Q8. Write a program to check if a specific element exists in a list.

Input:  
List: [8, 4, 7, 9, 2]  
Element: 7  

Expected Output:  
7 exists in the list.

Q9. Write a program to concatenate two lists.

Input:  
List 1: [1, 2, 3]  
List 2: [4, 5, 6]  

Expected Output:  
Concatenated list: [1, 2, 3, 4, 5, 6]

Q10. Write a program to remove duplicate elements from a list.

Input:  
[1, 2, 2, 3, 4, 4, 5]  

Expected Output:  
List without duplicates: [1, 2, 3, 4, 5]

Q11. Write a program to find the index of a specific element in a list.

Input:  
List: [10, 20, 30, 40, 50]  
Element: 30  

Expected Output:  
Index of 30: 2

Q12. Write a program to insert an element at a specific index in a list.

Input:  
List: [1, 3, 4, 5]  
Element: 2  
Index: 1  

Expected Output:  
Updated list: [1, 2, 3, 4, 5]

Q13. Write a program to find all even numbers in a list.

Input:  
[1, 2, 3, 4, 5, 6]  

Expected Output:  
Even numbers: [2, 4, 6]

Q14. Write a program to find all odd numbers in a list.

Input:  
[1, 2, 3, 4, 5, 6]  

Expected Output:  
Odd numbers: [1, 3, 5]

Q15. Write a program to remove a specific element from a list.

Input:  
List: [7, 8, 9, 10, 11]  
Element: 9  

Expected Output:  
Updated list: [7, 8, 10, 11]

Q16. Write a program to create a list of squares for elements in another list.

Input:  
[1, 2, 3, 4, 5]  

Expected Output:  
List of squares: [1, 4, 9, 16, 25]

Q17. Write a program to find the largest and smallest elements in a list.

Input:  
[10, 45, 3, 22, 67]  

Expected Output:  
Largest: 67, Smallest: 3

Q18. Write a program to find the sum of all even numbers in a list.

Input:  
[3, 6, 8, 1, 5]  

Expected Output:  
Sum of even numbers: 14

Q19. Write a program to find all unique elements in a list.

Input:  
[3, 5, 3, 6, 7, 5]  

Expected Output:  
Unique elements: [6, 7]

Q20. Write a program to split a list into two halves.

Input:  
[1, 2, 3, 4, 5, 6]  

Expected Output:  
First half: [1, 2, 3], Second half: [4, 5, 6]

Q21. Write a program to count even and odd numbers in a list.

Input:  
[3, 6, 8, 1, 5, 7, 2]  

Expected Output:  
Even count: 3, Odd count: 4

Q22. Write a program to check if a list is a palindrome.

Input:  
[1, 2, 3, 2, 1]  

Expected Output:  
The list is a palindrome.

Q23. Write a program to merge two lists alternately.

Input:  
List 1: [1, 3, 5]  
List 2: [2, 4, 6]  

Expected Output:  
Merged list: [1, 2, 3, 4, 5, 6]

Q24. Write a program to find the second largest element in a list.

Input:  
[12, 45, 7, 22]  

Expected Output:  
Second largest: 22

Q25. Write a program to find common elements between two lists.

Input:  
List 1: [1, 2, 3, 4]  
List 2: [3, 4, 5, 6]  

Expected Output:  
Intersection: [3, 4]

Q26. Write a program to sort a list in descending order.

Input:  
[5, 3, 8, 6, 1]  

Expected Output:  
Sorted list: [8, 6, 5, 3, 1]

Q27. Write a program to find the cumulative sum of elements in a list.

Input:  
[1, 2, 3, 4, 5]  

Expected Output:  
Cumulative sum: [1, 3, 6, 10, 15]

Q28. Write a program to remove elements at odd indices from a list.

Input:  
[1, 2, 3, 4, 5]  

Expected Output:  
Updated list: [1, 3, 5]

Q29. Write a program to multiply all the elements in a list.

Input:  
[1, 2, 3, 4, 5]  

Expected Output:  
Product: 120

Q30. Write a program to check if a list is empty.

Input:  
[]  

Expected Output:  
The list is empty.