DSA interview questions by pattern
Arrays, two pointers, sliding window, stack, binary search, linked lists, trees, graphs, heaps, dynamic programming, backtracking and greedy.
- Two Sum
- Valid Anagram
- Group Anagrams
- Top K Frequent Elements
- Product of Array Except Self
- Longest Consecutive Sequence
- Valid Palindrome
- Two Sum II (Sorted Input)
- 3Sum
- Container With Most Water
- Trapping Rain Water
- Best Time to Buy and Sell Stock
- Longest Substring Without Repeating Characters
- Longest Repeating Character Replacement
- Permutation in String
- Minimum Window Substring
- Valid Parentheses
- Min Stack
- Evaluate Reverse Polish Notation
- Daily Temperatures
- Largest Rectangle in Histogram
- Binary Search
- Search a 2D Matrix
- Koko Eating Bananas
- Search in Rotated Sorted Array
- Find Minimum in Rotated Sorted Array
- Reverse Linked List
- Merge Two Sorted Lists
- Linked List Cycle
- Remove Nth Node From End
- Reorder List
- Maximum Depth of Binary Tree
- Invert Binary Tree
- Binary Tree Level Order Traversal
- Validate Binary Search Tree
- Lowest Common Ancestor of a BST
- Number of Islands
- Max Area of Island
- Course Schedule
- Rotting Oranges
- Word Ladder
- Kth Largest Element in an Array
- Last Stone Weight
- K Closest Points to Origin
- Task Scheduler
- Find Median from Data Stream
- Climbing Stairs
- House Robber
- Coin Change
- Longest Increasing Subsequence
- Longest Common Subsequence
- Word Break
- Subsets
- Permutations
- Combination Sum
- Generate Parentheses
- Word Search
- Jump Game
- Maximum Subarray
- Gas Station
- Merge Intervals
- Partition Labels
