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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. Convert Binary Number in a Linked List to Integer
2. Reverse String
3. Strobogrammatic Number
4. Lowest Common Ancestor of a Binary Search Tree
5. Number of 1 Bits
6. House Robber
7. Maximum Subarray
8. Merge Sorted Array
9. Valid Parentheses
10. Linked List Cycle
11. Sort Array By Parity
12. Best Time to Buy and Sell Stock
13. Delete Node in a Linked List
14. Intersection of Two Linked Lists
15. Longest Common Prefix
16. Remove Duplicates from Sorted Array
17. Maximum Product of Three Numbers
18. Valid Anagram
19. Rotate Array
20. Merge Two Sorted Lists
21. Convert Sorted Array to Binary Search Tree
22. Valid Palindrome
23. Can Place Flowers

Medium Problems –

1. Binary Search Tree Iterator
2. Group Anagrams
3. Perfect Squares
4. Permutations
5. Generate Parentheses
6. Daily Temperatures
7. Course Schedule
8. Delete Node in a BST
9. Remove Nth Node From End of List
10. 3Sum
11. Binary Tree Preorder Traversal
12. Reverse Words in a String
13. Letter Combinations of a Phone Number
14. Meeting Rooms II
15. Shuffle an Array
16. Different Ways to Add Parentheses
17. Binary Tree Level Order Traversal
18. String to Integer (atoi)
19. Add Two Numbers II
20. Search in Rotated Sorted Array
21. Spiral Matrix
22. Reorder List
23. Number of Islands
24. Strobogrammatic Number II
25. Decode Ways
26. Longest Palindromic Substring
27. Decode String
28. Validate IP Address
29. Snakes and Ladders
30. Rotate Image
31. LRU Cache
32. Merge Intervals
33. Add Two Numbers

Hard Problems –

1. Maximum Profit in Job Scheduling
2. Reverse Nodes in k-Group
3. Merge k Sorted Lists
4. Word Search II