Python Programs for practice - 2

Here are top 20 Python coding interview questions often encountered during interviews at top technology companies (FAANG) to help Freshers and Experienced Python Developers in their preparations for the interviews. You can also use these Python programs for practice to upskill yourself.

You will find these questions very helpful in your interviews. Prepare well and All the very best.

All the feedbacks and suggestions are most welocome.

Absolutely, here are some common Python coding interview questions often encountered during interviews at top technology companies (FAANG), formatted in markdown:

  1. Two Sum: Given an array of integers, find two numbers that add up to a specific target number.

  2. Reverse a String: Write a function to reverse a string.

  3. Palindrome: Determine whether a given string is a palindrome.

  4. FizzBuzz: Print numbers from 1 to n, but for multiples of 3, print "Fizz" instead of the number, and for multiples of 5, print "Buzz". For numbers which are multiples of both 3 and 5, print "FizzBuzz".

  5. Valid Parentheses: Given a string containing just the characters '(', ')', '{', '}', '[', and ']', determine if the input string is valid.

  6. Merge Intervals: Given a collection of intervals, merge any overlapping intervals.

  7. Maximum Subarray: Find the contiguous subarray within an array (containing at least one number) that has the largest sum.

  8. Longest Common Prefix: Find the longest common prefix string amongst an array of strings.

  9. Reverse Linked List: Reverse a singly linked list.

  10. Binary Tree Traversal: Implement different types of binary tree traversals: inorder, preorder, and postorder.

  11. Validate BST: Determine if a given binary tree is a valid binary search tree.

  12. Word Search: Given a 2D board and a word, find if the word exists in the grid.

  13. Serialize and Deserialize Binary Tree: Serialize and deserialize a binary tree.

  14. LRU Cache: Implement an LRU (Least Recently Used) cache.

  15. String to Integer (atoi): Implement the atoi function, which converts a string to an integer.

  16. Implement Trie (Prefix Tree): Implement a trie with insert, search, and startsWith methods.

  17. Rotate Array: Rotate an array of n elements to the right by k steps.

  18. Intersection of Two Arrays: Given two arrays, write a function to compute their intersection.

  19. Find First and Last Position of Element in Sorted Array: Given an array of integers sorted in ascending order, find the starting and ending position of a given target value.

  20. Merge k Sorted Lists: Merge k sorted linked lists and return it as one sorted list.

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