| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Maximum occurring character in a string | 8216 |
| 2 | Rearrange Positive and Negative Numbers Alternatively in Array | 2751 |
| 3 | Longest Substring Without Repeating Characters LeetCode Solution | 2706 |
| 4 | Product of array except self | 2404 |
| 5 | Find Triplet in Array With a Given Sum | 2291 |
| 6 | Smallest Positive Number Missing in an Unsorted Array | 2267 |
| 7 | A Product Array Puzzle | 2207 |
| 8 | Rearrange given Array in Maximum Minimum Form | 2139 |
| 9 | Sort Array By Parity LeetCode Solution | 1916 |
| 10 | Convex Hull Algorithm | 1856 |
| 11 | Stock Buy Sell to Maximize Profit | 1816 |
| 12 | Best Time to Buy and Sell Stock II Leetcode Solution | 1583 |
| 13 | First Circular Tour to Visit all the Petrol Bunks | 1525 |
| 14 | Trapping Rain Water Leetcode Solution | 1517 |
| 15 | Reverse words in a string | 1457 |
| 16 | Group Anagrams LeetCode Solution | 1443 |
| 17 | Longest Common Subsequence | 1399 |
| 18 | Letter Combinations of a Phone Number | 1389 |
| 19 | Sort Colors LeetCode Solution | 1353 |
| 20 | Dijkstra Algorithm | 1344 |
| 21 | Next Permutation | 1338 |
| 22 | LRU Cache LeetCode Solution | 1321 |
| 23 | Painting Fence Algorithm | 1210 |
| 24 | Sort 0s 1s and 2s in an Array | 1139 |
| 25 | Best Time to Buy and Sell Stock | 1123 |
| 26 | Swap Kth Node from beginning with Kth Node from End | 1069 |
| 27 | Intersection of Two Linked Lists LeetCode Solution | 1046 |
| 28 | Decode Ways | 1040 |
| 29 | Huffman Coding | 1031 |
| 30 | LRU Cache Leetcode Solution | 1004 |
