75 Questions .. and more

Table of Content

Topics

Low-Level Design

Title Link Tags
LRU Cache Leetcode ✅
Linked List Leetcode ✅
Multiset Leetcode ✅
Min-Stack Leetcode ✅

Array

Title Link Tags
Two Sum Leetcode ✅
Best Time to Buy and Sell Stock Leetcode ✅
Contains Duplicate Leetcode ✅
Product of Array Except Self Leetcode ✅
Maximum Subarray Leetcode ✅
Maximum Product Subarray Leetcode ✅
Find Minimum in Rotated Sorted Array Leetcode ✅
Search in Rotated Sorted Array Leetcode ✅
3Sum Leetcode ✅
Container With Most Water Leetcode ✅
Combination Sum I Leetcode ✅ ⭕️
Combination Sum II Leetcode ✅ ⭕️
Combination Sum III Leetcode ✅ ⭕️
Asteroid Collision Leetcode ✅ ⭕️
Title Link Tags
Minimum Number of Operations to Make Array Continuous Leetcode ✅ ⭕️
Number of Flowers in Full Bloom Leetcode ✅ ⭕️
Find in Mountain Array Leetcode ✅ ⭕️

Sliding Window

Title Link Tags
Longest Substring Without Repeating Characters Leetcode ✅ ⭕️

Binary

Title Link Tags
Sum of Two Integers Leetcode  
Number of 1 Bits Leetcode  
Counting Bits Leetcode  
Missing Number Leetcode  
Reverse Bits Leetcode  

Dynamic Programming

Title Link Tags
Climbing Stairs Leetcode  
Coin Change Leetcode  
Longest Increasing Subsequence Leetcode  
Longest Common Subsequence    
Word Break Problem Leetcode  
Combination Sum Leetcode  
House Robber Leetcode  
House Robber II Leetcode  
Decode Ways Leetcode  
Unique Paths Leetcode  
Jump Game Leetcode  

Graph

Title Link Tags
Clone Graph Leetcode  
Course Schedule Leetcode  
Pacific Atlantic Water Flow Leetcode  
Number of Islands Leetcode  
Longest Consecutive Sequence Leetcode  
Alien Dictionary (Leetcode Premium) Leetcode  
Graph Valid Tree (Leetcode Premium) Leetcode  
Number of Connected Components in an Undirected Graph (Leetcode Premium) Leetcode  
Design Graph With Shortest Path Calculator Leetcode ✅ ⭕️
Largest Color Value in a Directed Graph Leetcode ✅ ⭕️

Interval

Title Link Tags
Insert Interval Leetcode  
Merge Intervals Leetcode  
Non-overlapping Intervals Leetcode  
Meeting Rooms (Leetcode Premium) Leetcode  
Meeting Rooms II (Leetcode Premium) Leetcode  

Linked List

Title Link Tags
Intersection of Two Linked Lists Leetcode ✅ ⭕️
Odd Even Linked List Leetcode ✅ ⭕️
Reverse a Linked List Leetcode  
Detect Cycle in a Linked List Leetcode  
Add two numbers Leetcode ✅ ⭕️
Merge Two Sorted Lists Leetcode  
Merge K Sorted Lists Leetcode  
Remove Nth Node From End Of List Leetcode  
Reorder List Leetcode  

Matrix

Title Link Tags
Set Matrix Zeroes Leetcode  
Spiral Matrix Leetcode  
Rotate Image Leetcode  
Word Search Leetcode  

String

Title Link Tags
Longest Substring Without Repeating Characters Leetcode  
Longest Repeating Character Replacement Leetcode  
Minimum Window Substring Leetcode  
Valid Anagram Leetcode  
Group Anagrams Leetcode  
Valid Parentheses Leetcode  
Valid Palindrome Leetcode  
Longest Palindromic Substring Leetcode  
Palindromic Substrings Leetcode  
Encode and Decode Strings (Leetcode Premium) Leetcode  
Reverse Words in a String Leetcode ✅ ⭕️
Close Strings Leetcode ✅ ⭕️

Tree

Title Link Tags
Maximum Depth of Binary Tree Leetcode ✅
Same Tree Leetcode ✅
Invert/Flip Binary Tree Leetcode  
Binary Tree Maximum Path Sum Leetcode  
Binary Tree Level Order Traversal Leetcode ✅
Binary Tree Zigzag Level Order Traversal Leetcode ✅ ⭕️
Binary Tree Right Side View Leetcode ✅ ⭕️
Serialize and Deserialize Binary Tree Leetcode  
Subtree of Another Tree Leetcode  
Construct Binary Tree from Preorder and Inorder Traversal Leetcode  
Validate Binary Search Tree Leetcode  
Kth Smallest Element in a BST Leetcode  
Lowest Common Ancestor of BST Leetcode  
Implement Trie (Prefix Tree) Leetcode  
Add and Search Word Leetcode  
Word Search II Leetcode  

Heap

Title Link Tags
Merge K Sorted Lists Leetcode  
Top K Frequent Elements Leetcode  
Find Median from Data Stream Leetcode  

Adhoc

Title Link Tags
Convert Integer to Roman Numeral Leetcode ✅ ⭕️

Note

Tag Significance
✅ Done
⭕️ Added by @umakantv