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Blind 75

74 questions · 0 seen

The classic 75 problems for interview prep

Problems

1 Two Sum
3 Longest Substring Without Repeating Characters
5 Longest Palindromic Substring
7 Reverse Integer
11 Container With Most Water
15 3Sum
19 Remove Nth Node From End of List
20 Valid Parentheses
21 Merge Two Sorted Lists
23 Merge k Sorted Lists
33 Search in Rotated Sorted Array
39 Combination Sum
45 Jump Game II
48 Rotate Image
49 Group Anagrams
53 Maximum Subarray
54 Spiral Matrix
55 Jump Game
56 Merge Intervals
57 Insert Interval
62 Unique Paths
70 Climbing Stairs
73 Set Matrix Zeroes
76 Minimum Window Substring
79 Word Search
91 Decode Ways
98 Validate Binary Search Tree
100 Same Tree
102 Binary Tree Level Order Traversal
104 Maximum Depth of Binary Tree
121 Best Time to Buy and Sell Stock
124 Binary Tree Maximum Path Sum
128 Longest Consecutive Sequence
133 Clone Graph
139 Word Break
141 Linked List Cycle
143 Reorder List
152 Maximum Product Subarray
153 Find Minimum in Rotated Sorted Array
190 Reverse Bits
191 Number of 1 Bits
198 House Robber
200 Number of Islands
206 Reverse Linked List
207 Course Schedule
208 Implement Trie (Prefix Tree)
211 Design Add and Search Words Data Structure
212 Word Search II
213 House Robber II
217 Contains Duplicate
226 Invert Binary Tree
230 Kth Smallest Element in a BST
235 Lowest Common Ancestor of a Binary Search Tree
238 Product of Array Except Self
242 Valid Anagram
268 Missing Number
295 Find Median from Data Stream
297 Serialize and Deserialize Binary Tree
300 Longest Increasing Subsequence
322 Coin Change
338 Counting Bits
347 Top K Frequent Elements
371 Sum of Two Integers
377 Combination Sum IV
417 Pacific Atlantic Water Flow
424 Longest Repeating Character Replacement
435 Non-overlapping Intervals
572 Subtree of Another Tree
647 Palindromic Substrings