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Problem Library

Master these coding challenges to ace your next technical interview. Handpicked problems with personalized spaced repetition.

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All tracksBlind 75NeetCode 150NeetCode 250Striver A to ZSDE Sheet

Showing 1-25 of 80 matching problems in NeetCode 150.

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All topics0-1 KnapsackAlgorithm XArrayBacktrackingBidirectional SearchBinary LiftingBinary SearchBinary Search TreeBinary TreeBit ManipulationBorůvka's AlgorithmBracket SequencesBreadth-First SearchBrute-Force SearchBucket SortCombinatoricsComplete KnapsackCounting

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StatusTitleDifficulty
1. Two SumOpen sourceEasy
4. Median of Two Sorted ArraysOpen sourceHard
11. Container With Most WaterOpen sourceMedium
15. 3SumOpen sourceMedium
33. Search in Rotated Sorted ArrayOpen sourceMedium
36. Valid SudokuOpen sourceMedium
39. Combination SumOpen sourceMedium
40. Combination Sum IIOpen sourceMedium
42. Trapping Rain WaterOpen sourceHard
45. Jump Game IIOpen sourceMedium
46. PermutationsOpen sourceMedium
48. Rotate ImageOpen sourceMedium
49. Group AnagramsOpen sourceMedium
51. N-QueensOpen sourceHard
53. Maximum SubarrayOpen sourceMedium
54. Spiral MatrixOpen sourceMedium
55. Jump GameOpen sourceMedium
56. Merge IntervalsOpen sourceMedium
57. Insert IntervalOpen sourceMedium
66. Plus OneOpen sourceEasy
73. Set Matrix ZeroesOpen sourceMedium
74. Search a 2D MatrixOpen sourceMedium
78. SubsetsOpen sourceMedium
79. Word SearchOpen sourceMedium
84. Largest Rectangle in HistogramOpen sourceHard