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Some problem were asked exactly same as available on Leetcode and some of them were similar or variations of the problems available.
Easy Problems –
1. Merge Two Sorted Lists – Link
2. Two Sum – Link
3. Design HashMap – Link
4. Merge Two Binary Trees – Link
5. Print in Order – Link
6. Second Highest Salary – Link
7. Defanging an IP Address – Link
8. Contains Duplicate II – Link
9. Rectangle Overlap – Link
10. Cousins in Binary Tree – Link
11. Number of 1 Bits – Link
12. Count Primes – Link
13. Array Partition I – Link
14. House Robber – Link
15. Contains Duplicate – Link
16. Roman to Integer – Link
17. Climbing Stairs – Link
18. Reverse Integer – Link
19. Merge Sorted Array – Link
20. Diameter of Binary Tree – Link
Medium Problems –
1. Vertical Order Traversal of a Binary Tree – Link
2. Set Matrix Zeroes – Link
3. Flatten Binary Tree to Linked List – Link
4. Decode Ways – Link
5. Find the Duplicate Number – Link
6. Maximum Product Subarray (152th) – Link
7. Jump Game – Link
8. Largest Divisible Subset – Link
9. Container With Most Water – Link
10. Integer Break – Link
11. Contains Duplicate III – Link
12. Longest Substring with At Least K Repeating Characters – Link
13. Maximal Square – Link
14. 4Sum – Link
15. Longest Increasing Subsequence – Link
16. Contiguous Array – Link
17. Majority Element II – Link
18. LRU Cache – Link
19. ZigZag Conversion – Link
20. Rotting Oranges – Link
21. Rank Scores – Link
22. Coin Change – Link
23. Count Primes – Link
24. Spiral Matrix II – Link
25. Product of Array Except Self – Link
26. Spiral Matrix – Link
27. Single Number II – Link
28. Vertical Order Traversal of a Binary Tree – Link
29. Rotate Image – Link
Hard Problems –
1. Critical Connections in a Network – Link
2. Longest Increasing Path in a Matrix – Link
3. Maximal Rectangle – Link
4. Merge k Sorted Lists – Link
5. Find Median from Data Stream – Link
6. Longest Consecutive Sequence – Link
7. Sliding Window Maximum – Link
8. Regular Expression Matching – Link
9. First Missing Positive – Link
10. Count of Smaller Numbers After Self – Link
11. Burst Balloons – Link
12. Shortest Palindrome – Link
13. Median of Two Sorted Arrays – Link
14. Trapping Rain Water – Link
15. Reverse Nodes in k-Group – Link
16. Minimum Window Substring – Link
17. The Skyline Problem – Link
18. Strong Password Checker – Link
19. Jump Game II – Link
20. N-Queens – Link