Problem Library

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All tracks Blind 75 NeetCode 150 NeetCode 250 Striver A to Z SDE Sheet

Showing 51-75 of 141 matching problems in NeetCode 250.

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Array141Dynamic Programming55String53

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Title	Difficulty	Topics
153. Find Minimum in Rotated Sorted Array Open source	Medium	ArrayBinary Search
167. Two Sum II - Input Array Is Sorted Open source	Medium	ArrayTwo PointersBinary Search
169. Majority Element Open source	Easy	ArrayHash TableDivide and Conquer+3 more
189. Rotate Array Open source	Medium	ArrayMathTwo Pointers
198. House Robber Open source	Medium	ArrayDynamic Programming
200. Number of Islands Open source	Medium	ArrayDepth-First SearchBreadth-First Search+2 more
209. Minimum Size Subarray Sum Open source	Medium	ArrayBinary SearchSliding Window+1 more
212. Word Search II Open source	Hard	ArrayStringBacktracking+2 more
213. House Robber II Open source	Medium	ArrayDynamic Programming
215. Kth Largest Element in an Array Open source	Medium	ArrayDivide and ConquerSorting+2 more
217. Contains Duplicate Open source	Easy	ArrayHash TableSorting
219. Contains Duplicate II Open source	Easy	ArrayHash TableSliding Window
229. Majority Element II Open source	Medium	ArrayHash TableSorting+2 more
238. Product of Array Except Self Open source	Medium	ArrayPrefix Sum
239. Sliding Window Maximum Open source	Hard	ArrayQueueSliding Window+3 more
252. Meeting Rooms Open sourcePremium	Easy	ArraySortingQuicksort
253. Meeting Rooms II Open sourcePremium	Medium	ArrayTwo PointersGreedy+3 more
268. Missing Number Open source	Easy	ArrayHash TableMath+3 more
269. Alien Dictionary Open sourcePremium	Hard	ArrayStringDepth-First Search+4 more
271. Encode and Decode Strings Open sourcePremium	Medium	ArrayStringDesign
286. Walls and Gates Open sourcePremium	Medium	ArrayBreadth-First SearchMatrix
287. Find the Duplicate Number Open source	Medium	ArrayTwo PointersBinary Search+3 more
300. Longest Increasing Subsequence Open source	Medium	ArrayBinary SearchDynamic Programming+1 more
304. Range Sum Query 2D - Immutable Open source	Medium	ArrayDesignMatrix+1 more
309. Best Time to Buy and Sell Stock with Cooldown Open source	Medium	ArrayDynamic Programming