Striver SDE Sheet - 115 Problems with Solutions

Striver SDE SheetOfficial

Striver's curated list of top coding interview problems. 180+ handpicked problems covering all DSA topics asked at Amazon, Google, Microsoft, and more.

By FleetCode115 problems32 Easy67 Medium16 HardUpdated 23 Mar 2026

Showing 16 of 115 problems · Hard · Clear

TitleSolutionAcceptDifficultyTopics

3193. Count the Number of InversionsVideo

Solution31.9%Hard

Array, Dynamic Programming· 5 companies

493. Reverse PairsVideo

Solution35.1%Hard

Array, Binary Indexed Tree +5· 9 companies

25. Reverse Nodes in k-GroupVideo

Solution67.4%Hard

Linked List, Recursion· 27 companies

42. Trapping Rain WaterVideo

Solution68.2%Hard

Array, Dynamic Programming +3· 73 companies

1982. Find Array Given Subset SumsVideo

Solution49.7%Hard

Array, Divide and Conquer· 1 company

60. Permutation SequenceVideo

Solution54.3%Hard

Math, Recursion· 7 companies

51. N-QueensVideo

Solution76.3%Hard

Array, Backtracking· 16 companies

37. Sudoku SolverVideo

Solution65.4%Hard

Array, Backtracking +2· 17 companies

4. Median of Two Sorted ArraysVideo

Solution47.9%Hard

Array, Binary Search +1· 45 companies

295. Find Median from Data StreamVideo

Solution54.9%Hard

Data Stream, Design +3· 40 companies

23. Merge k Sorted ListsVideo

Solution60.3%Hard

Divide and Conquer, Heap (Priority Queue) +2· 50 companies

460. LFU CacheVideo

Solution50.6%Hard

Design, Doubly-Linked List +2· 32 companies

84. Largest Rectangle in HistogramVideo

Solution50.7%Hard

Array, Monotonic Stack +1· 30 companies

239. Sliding Window MaximumVideo

Solution49.1%Hard

Array, Heap (Priority Queue) +3· 48 companies

124. Binary Tree Maximum Path SumVideo

Solution42.7%Hard

Binary Tree, Depth-First Search +2· 25 companies

132. Palindrome Partitioning IIVideo

Solution37.9%Hard

Dynamic Programming, String· 9 companies

Striver SDE SheetOfficial

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