---

Easy Find Closest Number to Zero

Solution 🎥

Difficulty Easy Status ✖

---

Easy Merge Strings Alternately

Solution 🎥

Difficulty Easy Status ✖

---

Easy Roman to Integer

Solution 🎥

Difficulty Easy Status ✖

---

Easy Is Subsequence

Solution 🎥

Difficulty Easy Status ✖

---

Easy Best Time to Buy and Sell Stock

Solution 🎥

Difficulty Easy Status ✖

---

Easy Longest Common Prefix

Solution 🎥

Difficulty Easy Status ✖

---

Easy Summary Ranges

Solution 🎥

Difficulty Easy Status ✖

---

Medium Product of Array Except Self

Solution 🎥

Difficulty Medium Status ✖

---

Medium Merge Intervals

Solution 🎥

Difficulty Medium Status ✖

---

Medium Spiral Matrix

Solution 🎥

Difficulty Medium Status ✖

---

Medium Rotate Image

Solution 🎥

Difficulty Medium Status ✖

---

Easy Jewels and Stones

Solution 🎥

Difficulty Easy Status ✖

---

Easy Contains Duplicate

Solution 🎥

Difficulty Easy Status ✖

---

Easy Ransom Note

Solution 🎥

Difficulty Easy Status ✖

---

Easy Valid Anagram

Solution 🎥

Difficulty Easy Status ✖

---

Easy Maximum Number of Balloons

Solution 🎥

Difficulty Easy Status ✖

---

Easy Two Sum

Solution 🎥

Difficulty Easy Status ✖

---

Medium Valid Sudoku

Solution 🎥

Difficulty Medium Status ✖

---

Medium Group Anagrams

Solution 🎥

Difficulty Medium Status ✖

---

Easy Majority Element

Solution 🎥

Difficulty Easy Status ✖

---

Hard Longest Consecutive Sequence

Solution 🎥

Difficulty Hard Status ✖

---

Easy Squares of a Sorted Array

Solution 🎥

Difficulty Easy Status ✖

---

Easy Reverse String

Solution 🎥

Difficulty Easy Status ✖

---

Medium Two Sum II - Input Array Is Sorted

Solution 🎥

Difficulty Medium Status ✖

---

Easy Valid Palindrome

Solution 🎥

Difficulty Easy Status ✖

---

Medium 3Sum

Solution 🎥

Difficulty Medium Status ✖

---

Medium Container With Most Water

Solution 🎥

Difficulty Medium Status ✖

---

Hard Trapping Rain Water

Solution 🎥

Difficulty Hard Status ✖

---

Easy Baseball Game

Solution 🎥

Difficulty Easy Status ✖

---

Easy Valid Parentheses

Solution 🎥

Difficulty Easy Status ✖

---

Medium Evaluate Reverse Polish Notation (RPN)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Daily Temperatures

Solution 🎥

Difficulty Medium Status ✖

---

Medium Min Stack

Solution 🎥

Difficulty Medium Status ✖

---

Easy Remove Duplicates from Sorted List

Solution 🎥

Difficulty Easy Status ✖

---

Easy Reverse Linked List

Solution 🎥

Difficulty Easy Status ✖

---

Easy Merge Two Sorted Lists

Solution 🎥

Difficulty Easy Status ✖

---

Easy Linked List Cycle

Solution 🎥

Difficulty Easy Status ✖

---

Easy Middle of the Linked List

Solution 🎥

Difficulty Easy Status ✖

---

Medium Remove Nth Node from End of List

Solution 🎥

Difficulty Medium Status ✖

---

Medium Copy List with Random Pointer

Solution 🎥

Difficulty Medium Status ✖

---

Easy Binary Search

Solution 🎥

Difficulty Easy Status ✖

---

Easy Search Insert Position

Solution 🎥

Difficulty Easy Status ✖

---

Easy First Bad Version

Solution 🎥

Difficulty Easy Status ✖

---

Easy Valid Perfect Square

Solution 🎥

Difficulty Easy Status ✖

---

Medium Search a 2D Matrix

Solution 🎥

Difficulty Medium Status ✖

---

Medium Find Minimum in Rotated Sorted Array

Solution 🎥

Difficulty Medium Status ✖

---

Medium Search in Rotated Sorted Array

Solution 🎥

Difficulty Medium Status ✖

---

Medium Koko Eating Bananas

Solution 🎥

Difficulty Medium Status ✖

---

Easy Maximum Average Subarray I

Solution 🎥

Difficulty Easy Status ✖

---

Medium Max Consecutive Ones III

Solution 🎥

Difficulty Medium Status ✖

---

Medium Longest Substring Without Repeating Characters

Solution 🎥

Difficulty Medium Status ✖

---

Medium Longest Repeating Character Replacement

Solution 🎥

Difficulty Medium Status ✖

---

Medium Minimum Size Subarray Sum

Solution 🎥

Difficulty Medium Status ✖

---

Medium Permutation in String

Solution 🎥

Difficulty Medium Status ✖

---

Easy Invert Binary Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Maximum Depth of Binary Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Balanced Binary Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Diameter of Binary Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Same Binary Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Symmetric Tree

Solution 🎥

Difficulty Easy Status ✖

---

Easy Path Sum

Solution 🎥

Difficulty Easy Status ✖

---

Medium Subtree of Another Tree

Solution 🎥

Difficulty Medium Status ✖

---

Medium Binary Tree Level Order Traversal (BFS)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Kth Smallest Element in a BST

Solution 🎥

Difficulty Medium Status ✖

---

Easy Minimum Absolute Difference in BST

Solution 🎥

Difficulty Easy Status ✖

---

Medium Validate Binary Search Tree

Solution 🎥

Difficulty Medium Status ✖

---

Medium Lowest Common Ancestor of a Binary Search Tree

Solution 🎥

Difficulty Medium Status ✖

---

Medium Implement Trie (Prefix Tree)

Solution 🎥

Difficulty Medium Status ✖

---

Easy Last Stone Weight

Solution 🎥

Difficulty Easy Status ✖

---

Medium Kth Largest Element in an Array

Solution 🎥

Difficulty Medium Status ✖

---

Medium Top K Frequent Elements

Solution 🎥

Difficulty Medium Status ✖

---

Medium K Closest Points to Origin

Solution 🎥

Difficulty Medium Status ✖

---

Hard Merge K Sorted Linked Lists

Solution 🎥

Difficulty Hard Status ✖

---

Medium Subsets

Solution 🎥

Difficulty Medium Status ✖

---

Medium Permutations

Solution 🎥

Difficulty Medium Status ✖

---

Medium Combinations

Solution 🎥

Difficulty Medium Status ✖

---

Medium Combination Sum

Solution 🎥

Difficulty Medium Status ✖

---

Medium Letter Combinations of a Phone Number

Solution 🎥

Difficulty Medium Status ✖

---

Medium Generate Parentheses

Solution 🎥

Difficulty Medium Status ✖

---

Medium Word Search

Solution 🎥

Difficulty Medium Status ✖

---

Easy Find if Path Exists in Graph

Solution 🎥

Difficulty Easy Status ✖

---

Medium Number of Islands

Solution 🎥

Difficulty Medium Status ✖

---

Medium Max Area of Island

Solution 🎥

Difficulty Medium Status ✖

---

Medium Course Schedule (Detecting Cycles in a Graph)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Course Schedule II (Topological Sort)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Pacific Atlantic Water Flow

Solution 🎥

Difficulty Medium Status ✖

---

Medium Clone Graph

Solution 🎥

Difficulty Medium Status ✖

---

Medium Rotting Oranges

Solution 🎥

Difficulty Medium Status ✖

---

Medium Min Cost to Connect All Points (Prim's Algorithm to Create MST)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Network Delay Time (Dijkstra's Algorithm)

Solution 🎥

Difficulty Medium Status ✖

---

Easy Fibonacci Number

Solution 🎥

Difficulty Easy Status ✖

---

Easy Climbing Stairs

Solution 🎥

Difficulty Easy Status ✖

---

Easy Min Cost Climbing Stairs

Solution 🎥

Difficulty Easy Status ✖

---

Medium House Robber

Solution 🎥

Difficulty Medium Status ✖

---

Medium Unique Paths

Solution 🎥

Difficulty Medium Status ✖

---

Medium Maximum Subarray (Kadane's Algorithm)

Solution 🎥

Difficulty Medium Status ✖

---

Medium Jump Game

Solution 🎥

Difficulty Medium Status ✖

---

Medium Coin Change

Solution 🎥

Difficulty Medium Status ✖

---

Medium Longest Increasing Subsequence

Solution 🎥

Difficulty Medium Status ✖

---

Medium Longest Common Subsequence

Solution 🎥

Difficulty Medium Status ✖