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Striver 79 Last MomentOfficial

Striver's 79 Last Moment DSA Sheet. The most important 79 problems to revise right before your interview. Quick revision, maximum coverage.

By FleetCode60 problems7 Easy38 Medium15 HardUpdated 23 Mar 2026

Start: Next Permutation

60problems

7Easy

38Medium

15Hard

Signed in, the sheet shows which of these you have solved.

TitleSolutionAcceptDifficultyTopics

31. Next PermutationVideo

Solution46.1%Medium

Array, Two Pointers· 31 companies

15. 3SumVideo

Solution40.1%Medium

Array, Sorting +1· 57 companies

53. Maximum SubarrayVideo

Solution53.7%Medium

Array, Divide and Conquer +1· 64 companies

229. Majority Element IIVideo

Solution56.5%Medium

Array, Counting +2· 9 companies

3193. Count the Number of InversionsVideo

Solution31.9%Hard

Array, Dynamic Programming· 5 companies

152. Maximum Product SubarrayVideo

Solution37.3%Medium

Array, Dynamic Programming· 23 companies

81. Search in Rotated Sorted Array IIVideo

Solution40.4%Medium

Array, Binary Search· 10 companies

153. Find Minimum in Rotated Sorted ArrayVideo

Solution55.3%Medium

Array, Binary Search· 18 companies

162. Find Peak ElementVideo

Solution46.8%Medium

Array, Binary Search· 30 companies

875. Koko Eating BananasVideo

Solution50.4%Medium

Array, Binary Search· 47 companies

4. Median of Two Sorted ArraysVideo

Solution47.9%Hard

Array, Binary Search +1· 45 companies

774. Minimize Max Distance to Gas StationVideoPremium

Solution53.9%Hard

Array, Binary Search· 2 companies

876. Middle of the Linked ListVideo

Solution82.3%Easy

Linked List, Two Pointers· 13 companies

141. Linked List CycleVideo

Solution55.2%Easy

Hash Table, Linked List +1· 24 companies

19. Remove Nth Node From End of ListVideo

Solution52.4%Medium

Linked List, Two Pointers· 18 companies

160. Intersection of Two Linked ListsVideo

Solution64.6%Easy

Hash Table, Linked List +1· 13 companies

148. Sort ListVideo

Solution65.2%Medium

Divide and Conquer, Linked List +3· 9 companies

328. Odd Even Linked ListVideo

Solution62.4%Medium

Linked List· 12 companies

78. SubsetsVideo

Solution82.7%Medium

Array, Backtracking +1· 21 companies

39. Combination SumVideo

Solution76.9%Medium

Array, Backtracking· 26 companies

51. N-QueensVideo

Solution76.3%Hard

Array, Backtracking· 16 companies

37. Sudoku SolverVideo

Solution65.4%Hard

Array, Backtracking +2· 17 companies

79. Word SearchVideo

Solution48.2%Medium

Array, Backtracking +2· 36 companies

496. Next Greater Element IVideo

Solution76.5%Easy

Array, Hash Table +2· 17 companies

42. Trapping Rain WaterVideo

Solution68.2%Hard

Array, Dynamic Programming +3· 73 companies

84. Largest Rectangle in HistogramVideo

Solution50.7%Hard

Array, Monotonic Stack +1· 30 companies

735. Asteroid CollisionVideo

Solution49.2%Medium

Array, Simulation +1· 32 companies

239. Sliding Window MaximumVideo

Solution49.1%Hard

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

146. LRU CacheVideo

Solution48.2%Medium

Design, Doubly-Linked List +2· 120 companies

215. Kth Largest Element in an ArrayVideo

Solution69.4%Medium

Array, Divide and Conquer +3· 41 companies

621. Task SchedulerVideo

Solution64.0%Medium

Array, Counting +4· 24 companies

543. Diameter of Binary TreeVideo

Solution66.4%Easy

Binary Tree, Depth-First Search +1· 20 companies

124. Binary Tree Maximum Path SumVideo

Solution42.7%Hard

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

236. Lowest Common Ancestor of a Binary TreeVideo

Solution70.1%Medium

Binary Tree, Depth-First Search +1· 22 companies

105. Construct Binary Tree from Preorder and Inorder TraversalVideo

Solution69.7%Medium

Array, Binary Tree +3· 9 companies

450. Delete Node in a BSTVideo

Solution55.1%Medium

Binary Search Tree, Binary Tree +1· 11 companies

235. Lowest Common Ancestor of a Binary Search TreeVideo

Solution71.4%Medium

Binary Search Tree, Binary Tree +2· 10 companies

653. Two Sum IV - Input is a BSTVideo

Solution63.7%Easy

Binary Search Tree, Binary Tree +5· 8 companies

333. Largest BST SubtreeVideoPremium

Solution45.8%Medium

Binary Search Tree, Binary Tree +3· 2 companies

994. Rotting OrangesVideo

Solution59.5%Medium

Array, Breadth-First Search +1· 52 companies

127. Word LadderVideo

Solution46.3%Hard

Breadth-First Search, Hash Table +1· 41 companies

200. Number of IslandsVideo

Solution65.2%Medium

Array, Breadth-First Search +3· 86 companies

210. Course Schedule IIVideo

Solution56.3%Medium

Breadth-First Search, Depth-First Search +2· 36 companies

269. Alien DictionaryVideoPremium

Solution37.1%Hard

Array, Breadth-First Search +4· 18 companies

787. Cheapest Flights Within K StopsVideo

Solution42.7%Medium

Breadth-First Search, Depth-First Search +4· 18 companies

1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning TreeVideo

Solution66.4%Hard

Graph, Minimum Spanning Tree +3· 4 companies

721. Accounts MergeVideo

Solution62.2%Medium

Array, Breadth-First Search +5· 17 companies

1192. Critical Connections in a NetworkVideo

Solution60.6%Hard

Biconnected Component, Depth-First Search +1· 8 companies

198. House RobberVideo

Solution53.6%Medium

Array, Dynamic Programming· 40 companies

64. Minimum Path SumVideo

Solution68.6%Medium

Array, Dynamic Programming +1· 17 companies

455. Assign CookiesVideo

Solution55.4%Easy

Array, Greedy +2· 9 companies

1143. Longest Common SubsequenceVideo

Solution59.6%Medium

Dynamic Programming, String· 19 companies

516. Longest Palindromic SubsequenceVideo

Solution65.8%Medium

Dynamic Programming, String· 15 companies

72. Edit DistanceVideo

Solution61.5%Medium

Dynamic Programming, String· 24 companies

188. Best Time to Buy and Sell Stock IVVideo

Solution51.5%Hard

Array, Dynamic Programming· 11 companies

300. Longest Increasing SubsequenceVideo

Solution59.8%Medium

Array, Binary Search +1· 30 companies

312. Burst BalloonsVideo

Solution64.3%Hard

Array, Dynamic Programming· 15 companies

208. Implement Trie (Prefix Tree)Video

Solution69.9%Medium

Design, Hash Table +2· 21 companies

421. Maximum XOR of Two Numbers in an ArrayVideo

Solution53.8%Medium

Array, Bit Manipulation +2· 5 companies

921. Minimum Add to Make Parentheses ValidVideo

Solution74.7%Medium

Greedy, Stack +1· 7 companies

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