Blind 75 is a term often used in competitive programming and coding interviews. It refers to a curated list of 75 coding problems or questions that cover a wide range of topics and difficulty levels. These problems are commonly used by candidates preparing for technical interviews at tech companies like Google, Facebook, Amazon, Microsoft, and others.

The purpose of the Blind 75 list is to help candidates practice and improve their problem-solving skills in preparation for coding interviews. The problems cover various data structures, algorithms, and concepts such as arrays, linked lists, trees, dynamic programming, graphs, sorting, searching, and more.

Candidates often work through these problems to build their coding proficiency, problem-solving intuition, and familiarity with common algorithms and techniques. It's a valuable resource for anyone looking to excel in technical interviews and land a job in the tech industry.

It's important to note that the specific list of Blind 75 problems may evolve over time, and candidates may also encounter similar lists with different problem sets. It's a good idea to keep up to date with the latest resources and problem sets to ensure comprehensive interview preparation.

Array

• Two Sum - https://leetcode.com/problems/two-sum/ ✅
• Best Time to Buy and Sell Stock - https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ ✅
• Contains Duplicate - https://leetcode.com/problems/contains-duplicate/ ✅
• Product of Array Except Self - https://leetcode.com/problems/product-of-array-except-self/ ✅
• Maximum Subarray - https://leetcode.com/problems/maximum-subarray/ ✅
• Maximum Product Subarray - https://leetcode.com/problems/maximum-product-subarray/ ✅
• Find Minimum in Rotated Sorted Array - https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ ✅
• Search in Rotated Sorted Array - https://leetcode.com/problems/search-in-rotated-sorted-array/ ✅
• 3Sum - https://leetcode.com/problems/3sum/ ✅
• Container With Most Water - https://leetcode.com/problems/container-with-most-water/ ✅

Binary

• Sum of Two Integers - https://leetcode.com/problems/sum-of-two-integers/ ✅
• Number of 1 Bits - https://leetcode.com/problems/number-of-1-bits/ ✅
• Counting Bits - https://leetcode.com/problems/counting-bits/ ✅
• Missing Number - https://leetcode.com/problems/missing-number/ ✅
• Reverse Bits - https://leetcode.com/problems/reverse-bits/ ✅

Dynamic Programming

• Climbing Stairs - https://leetcode.com/problems/climbing-stairs/ ✅
• Coin Change - https://leetcode.com/problems/coin-change/ ✅
• Longest Increasing Subsequence - https://leetcode.com/problems/longest-increasing-subsequence/ ✅
• Longest Common Subsequence - https://leetcode.com/problems/longest-common-subsequence/ ✅
• Word Break Problem - https://leetcode.com/problems/word-break/ ✅
• Combination Sum - https://leetcode.com/problems/combination-sum-iv/ ✅
• House Robber - https://leetcode.com/problems/house-robber/ ✅
• House Robber II - https://leetcode.com/problems/house-robber-ii/ ✅
• Decode Ways - https://leetcode.com/problems/decode-ways/ ✅
• Unique Paths - https://leetcode.com/problems/unique-paths/ ✅
• Jump Game - https://leetcode.com/problems/jump-game/ ✅

Graph

• Clone Graph - https://leetcode.com/problems/clone-graph/
• Course Schedule - https://leetcode.com/problems/course-schedule/
• Pacific Atlantic Water Flow - https://leetcode.com/problems/pacific-atlantic-water-flow/
• Number of Islands - https://leetcode.com/problems/number-of-islands/ ✅
• Longest Consecutive Sequence - https://leetcode.com/problems/longest-consecutive-sequence/
• Alien Dictionary (Leetcode Premium) - https://leetcode.com/problems/alien-dictionary/
• Graph Valid Tree (Leetcode Premium) - https://leetcode.com/problems/graph-valid-tree/
• Number of Connected Components in an Undirected Graph (Leetcode Premium) - https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/

Interval

• Insert Interval - https://leetcode.com/problems/insert-interval/ ✅
• Merge Intervals - https://leetcode.com/problems/merge-intervals/ ✅
• Non-overlapping Intervals - https://leetcode.com/problems/non-overlapping-intervals/ ✅
• Meeting Rooms (Leetcode Premium) - https://leetcode.com/problems/meeting-rooms/
• Meeting Rooms II (Leetcode Premium) - https://leetcode.com/problems/meeting-rooms-ii/

Linked List

• Reverse a Linked List - https://leetcode.com/problems/reverse-linked-list/ ✅
• Detect Cycle in a Linked List - https://leetcode.com/problems/linked-list-cycle/ ✅
• Merge Two Sorted Lists - https://leetcode.com/problems/merge-two-sorted-lists/ ✅
• Merge K Sorted Lists - https://leetcode.com/problems/merge-k-sorted-lists/
• Remove Nth Node From End Of List - https://leetcode.com/problems/remove-nth-node-from-end-of-list/ ✅
• Reorder List - https://leetcode.com/problems/reorder-list/ ✅

Matrix

• Set Matrix Zeroes - https://leetcode.com/problems/set-matrix-zeroes/ ✅
• Spiral Matrix - https://leetcode.com/problems/spiral-matrix/ ✅
• Rotate Image - https://leetcode.com/problems/rotate-image/ ✅
• Word Search - https://leetcode.com/problems/word-search/ ✅

String

• Longest Substring Without Repeating Characters - https://leetcode.com/problems/longest-substring-without-repeating-characters/ ✅
• Longest Repeating Character Replacement - https://leetcode.com/problems/longest-repeating-character-replacement/ ✅
• Minimum Window Substring - https://leetcode.com/problems/minimum-window-substring/ ✅
• Valid Anagram - https://leetcode.com/problems/valid-anagram/ ✅
• Group Anagrams - https://leetcode.com/problems/group-anagrams/ ✅
• Valid Parentheses - https://leetcode.com/problems/valid-parentheses/ ✅
• Valid Palindrome - https://leetcode.com/problems/valid-palindrome/ ✅
• Longest Palindromic Substring - https://leetcode.com/problems/longest-palindromic-substring/ ✅
• Palindromic Substrings - https://leetcode.com/problems/palindromic-substrings/ ✅
• Encode and Decode Strings (Leetcode Premium) - https://leetcode.com/problems/encode-and-decode-strings/ ✅

Tree

• Maximum Depth of Binary Tree - https://leetcode.com/problems/maximum-depth-of-binary-tree/ ✅
• Same Tree - https://leetcode.com/problems/same-tree/ ✅
• Invert/Flip Binary Tree - https://leetcode.com/problems/invert-binary-tree/ ✅
• Binary Tree Maximum Path Sum - https://leetcode.com/problems/binary-tree-maximum-path-sum/
• Binary Tree Level Order Traversal - https://leetcode.com/problems/binary-tree-level-order-traversal/
• Serialize and Deserialize Binary Tree - https://leetcode.com/problems/serialize-and-deserialize-binary-tree/
• Subtree of Another Tree - https://leetcode.com/problems/subtree-of-another-tree/
• Construct Binary Tree from Preorder and Inorder Traversal - https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/
• Validate Binary Search Tree - https://leetcode.com/problems/validate-binary-search-tree/
• Kth Smallest Element in a BST - https://leetcode.com/problems/kth-smallest-element-in-a-bst/
• Lowest Common Ancestor of BST - https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/
• Implement Trie (Prefix Tree) - https://leetcode.com/problems/implement-trie-prefix-tree/
• Add and Search Word - https://leetcode.com/problems/add-and-search-word-data-structure-design/
• Word Search II - https://leetcode.com/problems/word-search-ii/

Heap

• Merge K Sorted Lists - https://leetcode.com/problems/merge-k-sorted-lists/
• Top K Frequent Elements - https://leetcode.com/problems/top-k-frequent-elements/
• Find Median from Data Stream - https://leetcode.com/problems/find-median-from-data-stream/