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Most Asked Questions

Frequently asked problems across interviews

16 Easy36 Medium8 Hard
0 of 60 solved0%

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Showing 60 of 60 problems

01Two Sumeasy
02Longest Substring Without Repeating Charactersmedium
03Longest Palindromic Substringmedium
04Longest Common Prefixeasy
053Summedium
06Valid Parentheseseasy
07Merge Two Sorted Listseasy
08Search in Rotated Sorted Arraymedium
09Count and Saymedium
10Trapping Rain Waterhard
11Maximum Subarrayeasy
12Rotate Imagemedium
13Merge Intervalsmedium
14Unique Pathsmedium
15Plus One Linked Listmedium
16Set Matrix Zeroesmedium
17Largest Rectangle in Histogramhard
18Merge Sorted Arrayeasy
19Decode Waysmedium
20Binary Tree Inorder Traversaleasy
21Symmetric Treeeasy
22Balanced Binary Treeeasy
23Binary Tree Zigzag Level Order Traversalmedium
24Maximum Depth of Binary Treeeasy
25Populating Next Right Pointers in Each Nodemedium
26Pascal's Triangleeasy
27Best Time to Buy and Sell Stockeasy
28Binary Tree Maximum Path Sumhard
29Longest Consecutive Sequencemedium
30Palindrome Partitioningmedium
31Copy List with Random Pointermedium
32Linked List Cyclemedium
33LRU Cachehard
34Maximum Product Subarraymedium
35Intersection of Two Linked Listseasy
36Number of Islandsmedium
37Reverse Linked List IImedium
38Kth Smallest Element in a BSTmedium
39Palindrome Linked Listeasy
40Lowest Common Ancestor of a Binary Treemedium
41Sliding Window Maximumhard
42Find Missing and Repeatingmedium
43Inorder Successor in BSTmedium
44Find Median from Data Streamhard
45Serialize and Deserialize BSTmedium
46Longest Increasing Subsequencemedium
47Coin Changemedium
48Minimum Path Summedium
49Minimum Platformsmedium
50Minimum Insertion Steps to Make a String Palindromehard
51Compare Version Numbersmedium
52Meeting Rooms IImedium
53Lowest Common Ancestor of a BSTeasy
54Binary Tree Left Side Viewmedium
554Summedium
56Rotting Orangesmedium
57Next Greater Element Imedium
58Median of Two Sorted Arrayshard
59Count Inversionsmedium
60Maximum Subarray Sumeasy