DeetCode

All Problems

Contains DuplicateArrays
Easy
Best Time to Buy and Sell StockArrays
Easy
Two SumArrays
Easy
Valid ParenthesesArrays
Easy
Valid PalindromeString
Easy
Valid AnagramString
Easy
Detect Cycle in a Linked ListLinked List
Easy
Merge Two Sorted ListsLinked List
Easy
Reverse a Linked ListLinked List
Easy
Number of 1 BitsBinary
Easy
Missing NumberBinary
Easy
Reverse BitsBinary
Easy
Counting BitsBinary
Easy
Subtree of Another TreeTree
Easy
Maximum Depth of Binary TreeTree
Easy
Invert/Flip Binary TreeTree
Easy
Same TreeTree
Easy
Meeting Rooms (Leetcode Premium)Interval
Easy
Climbing StairsDynamic Programming
Easy
Maximum SubarrayArrays
Medium
Container With Most WaterArrays
Medium
Product of Array Except SelfArrays
Medium
Search in Rotated Sorted ArrayArrays
Medium
Maximum Product SubarrayArrays
Medium
Find Minimum in Rotated Sorted ArrayArrays
Medium
3SumArrays
Medium
Group AnagramsString
Medium
Longest Palindromic SubstringString
Medium
Palindromic SubstringsString
Medium
Longest Repeating Character ReplacementString
Medium
Encode and Decode Strings (Leetcode Premium)String
Medium
Longest Substring Without Repeating CharactersString
Medium
Remove Nth Node From End Of ListLinked List
Medium
Reorder ListLinked List
Medium
Sum of Two IntegersBinary
Medium
Rotate ImageMatrix
Medium
Set Matrix ZeroesMatrix
Medium
Word SearchMatrix
Medium
Spiral MatrixMatrix
Medium
Lowest Common Ancestor of BSTTree
Medium
Kth Smallest Element in a BSTTree
Medium
Construct Binary Tree from Preorder and Inorder TraversalTree
Medium
Validate Binary Search TreeTree
Medium
Add and Search WordTree
Medium
Implement Trie (Prefix Tree)Tree
Medium
Binary Tree Level Order TraversalTree
Medium
Merge IntervalsInterval
Medium
Meeting Rooms II (Leetcode Premium)Interval
Medium
Insert IntervalInterval
Medium
Non-overlapping IntervalsInterval
Medium
Top K Frequent ElementsHeap
Medium
Course ScheduleGraph
Medium
Pacific Atlantic Water FlowGraph
Medium
Number of Connected Components in an Undirected Graph (Leetcode Premium)Graph
Medium
Graph Valid Tree (Leetcode Premium)Graph
Medium
Clone GraphGraph
Medium
Number of IslandsGraph
Medium
Longest Consecutive SequenceGraph
Medium
House RobberDynamic Programming
Medium
Unique PathsDynamic Programming
Medium
Longest Increasing SubsequenceDynamic Programming
Medium
House Robber IIDynamic Programming
Medium
Decode WaysDynamic Programming
Medium
Jump GameDynamic Programming
Medium
Word Break ProblemDynamic Programming
Medium
Longest Common SubsequenceDynamic Programming
Medium
Combination SumDynamic Programming
Medium
Coin ChangeDynamic Programming
Medium
Koko Eating BananasBinary Search
Medium
Minimum Window SubstringString
Hard
Binary Tree Maximum Path SumTree
Hard
Serialize and Deserialize Binary TreeTree
Hard
Word Search IITree
Hard
Find Median from Data StreamHeap
Hard
Merge K Sorted ListsHeap
Hard
Alien Dictionary (Leetcode Premium)Graph
Hard