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🏆
Blind 75
Classic leetcode-style problems
🏆
Blind 75
75 problems
Classic leetcode-style problems
Topics
Array
7
Two Pointers
2
Sliding Window
3
Binary Search
2
Bit Manipulation
5
Dynamic Programming
11
Graph
7
Intervals
5
Linked List
6
Matrix
4
String
7
Binary Tree
8
Binary Search Tree
3
Trie
3
Heap
2
Array
7 problems
Two Sum
Easy
Amazon
Google
+18 more
Best Time to Buy and Sell Stock
Easy
Amazon
Microsoft
+18 more
Contains Duplicate
Easy
Apple
Microsoft
+1 more
Product of Array Except Self
Medium
Meta
Amazon
+10 more
Maximum Subarray
Medium
Microsoft
Amazon
+13 more
Maximum Product Subarray
Medium
Amazon
LinkedIn
+4 more
Longest Consecutive Sequence
Hard
Google
Amazon
+4 more
Two Pointers
2 problems
3Sum
Medium
Amazon
Meta
+10 more
Sliding Window
3 problems
Longest Substring Without Repeating Characters
Medium
Amazon
Bloomberg
+18 more
Binary Search
2 problems
Find Minimum in Rotated Sorted Array
Medium
Meta
Amazon
+4 more
Bit Manipulation
5 problems
Sum of Two Integers
Medium
Meta
Number of 1 Bits
Easy
Dynamic Programming
11 problems
Climbing Stairs
Easy
Expedia
Amazon
+6 more
Graph
7 problems
Clone Graph
Medium
Meta
Amazon
+7 more
Intervals
5 problems
Insert Interval
Medium
Google
Twitter
+4 more
Linked List
6 problems
Reverse Linked List
Easy
Adobe
Amazon
+13 more
Matrix
4 problems
Set Matrix Zeroes
Medium
Meta
Microsoft
+6 more
String
7 problems
Valid Anagram
Easy
Bloomberg
Meta
+10 more
Binary Tree
8 problems
Maximum Depth of Binary Tree
Easy
LinkedIn
Amazon
+1 more
Binary Search Tree
3 problems
Validate Binary Search Tree
Medium
Kth Smallest Element in a BST
Medium
Amazon
Trie
3 problems
Implement Trie (Prefix Tree)
Medium
Amazon
Pinterest
+7 more
Heap
2 problems
Top K Frequent Elements
Medium
Capital One
Meta
+10 more
Container With Most Water
Medium
Amazon
Google
+5 more
Longest Repeating Character Replacement
Medium
Amazon
Microsoft
+3 more
Minimum Window Substring
Hard
Meta
Amazon
+11 more
Search in Rotated Sorted Array
Medium
Amazon
Meta
+15 more
Box
Cisco
+2 more
Counting Bits
Medium
Amazon
Blizzard
Missing Number
Easy
Capital One
Amazon
+7 more
Reverse Bits
Easy
Apple
Google
Coin Change
Medium
Amazon
Bloomberg
+9 more
Longest Increasing Subsequence
Medium
Apple
Amazon
+8 more
Longest Common Subsequence
Medium
Amazon
Microsoft
+1 more
Word Break
Medium
Meta
Amazon
+7 more
Combination Sum IV
Medium
Bloomberg
Wish
+1 more
House Robber
Medium
Cisco
Amazon
+5 more
House Robber II
Medium
eBay
Decode Ways
Medium
JPMorgan
Meta
+10 more
Unique Paths
Medium
Microsoft
Amazon
+7 more
Jump Game
Medium
Amazon
Apple
+1 more
Course Schedule
Medium
Amazon
Intuit
+6 more
Pacific Atlantic Water Flow
Medium
ByteDance
Google
+1 more
Number of Islands
Medium
Amazon
Google
+8 more
Alien Dictionary
Hard
Meta
Amazon
+5 more
Graph Valid Tree
Medium
Amazon
Qualtrics
+1 more
Number of Connected Components in an Undirected Graph
Medium
Amazon
Meta
+3 more
Merge Intervals
Medium
Meta
JPMorgan
+18 more
Non-overlapping Intervals
Medium
Meta
ByteDance
+1 more
Meeting Rooms
Easy
Meta
Microsoft
+4 more
Meeting Rooms II
Medium
Amazon
Bloomberg
+13 more
Linked List Cycle
Easy
Microsoft
Apple
+4 more
Merge Two Sorted Lists
Easy
Amazon
Adobe
+10 more
Merge k Sorted Lists
Hard
Amazon
Meta
+13 more
Remove Nth Node From End of List
Medium
Meta
Amazon
+3 more
Reorder List
Medium
Meta
Amazon
+1 more
Spiral Matrix
Medium
Microsoft
Apple
+8 more
Rotate Image
Medium
Amazon
Google
+5 more
Word Search
Medium
Amazon
Microsoft
+5 more
Group Anagrams
Medium
Amazon
Google
+8 more
Valid Parentheses
Easy
Amazon
Bloomberg
+18 more
Valid Palindrome
Easy
Meta
Microsoft
+6 more
Longest Palindromic Substring
Medium
Amazon
Microsoft
+9 more
Palindromic Substrings
Medium
Meta
Goldman Sachs
+6 more
Encode and Decode Strings
Medium
Microsoft
Same Tree
Easy
Amazon
Google
+2 more
Invert Binary Tree
Easy
Microsoft
Amazon
+4 more
Binary Tree Maximum Path Sum
Hard
Meta
Amazon
+8 more
Binary Tree Level Order Traversal
Medium
Amazon
Google
+8 more
Serialize and Deserialize Binary Tree
Hard
Meta
Microsoft
+11 more
Subtree of Another Tree
Easy
Amazon
Google
+7 more
Construct Binary Tree from Preorder and Inorder Traversal
Medium
Amazon
Microsoft
+5 more
Google
+8 more
Lowest Common Ancestor of a Binary Search Tree
Easy
Amazon
Meta
+3 more
Design Add and Search Words Data Structure
Medium
Google
Amazon
+1 more
Word Search II
Hard
Amazon
Microsoft
+6 more
Find Median from Data Stream
Hard
Amazon
Meta
+14 more
Blind 75 - Featured Problems
