Comprehensive List of 50 Frequently Asked DSA and LeetCode Interview Problems with Links

Here’s a list of 50 frequently asked DSA and LeetCode problems during interviews, along with their full links:

1. Minimum Window Substring
2. Valid Parentheses
3. Merge Two Sorted Lists
4. Maximum Subarray
5. Two Sum
6. Reverse Integer
7. Valid Anagram
8. Fizz Buzz
9. Reverse a String
10. Intersection of Two Arrays
11. Palindrome Number
12. Linked List Cycle
13. Add Two Numbers
14. Longest Substring Without Repeating Characters
15. Implement a Stack using Queues
16. Serialize and Deserialize Binary Tree
17. Word Search
18. Subarray Sum Equals K
19. Word Break II
20. Kth Largest Element in an Array
21. Implement Trie (Prefix Tree)
22. The Skyline Problem
23. Palindrome Pairs
24. Alien Dictionary
25. LRU Cache
26. Find the Duplicate Number
27. Longest Increasing Subsequence
28. Largest Rectangle in Histogram
29. Number of Islands
30. Binary Tree Maximum Path Sum
31. Merge k Sorted Lists
32. Text Justification
33. Shortest Path in Binary Matrix
34. Median of Two Sorted Arrays
35. Regular Expression Matching
36. Merge Intervals
37. Maximum Depth of Binary Tree
38. Trapping Rain Water
39. Container With Most Water
40. 3Sum
41. Validate Binary Search Tree
42. Valid Number
43. Median of Data Stream
44. Regular Expression Parser
45. Design a Search Autocomplete System
46. Serialize and Deserialize BST
47. Number of Islands
48. Implement a Basic Calculator
49. Binary Tree Maximum Path Sum
50. Shortest Path in Binary Matrix