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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

Start: Set Matrix Zeroes

115problems

32Easy

67Medium

16Hard

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

Showing 32 of 115 problems · Easy · Clear

TitleSolutionAcceptDifficultyTopics

118. Pascal's TriangleVideo

Solution79.4%Easy

Array, Dynamic Programming· 17 companies

121. Best Time to Buy and Sell StockVideo

Solution57.1%Easy

Array, Dynamic Programming· 92 companies

88. Merge Sorted ArrayVideo

Solution55.7%Easy

Array, Sorting +1· 37 companies

169. Majority ElementVideo

Solution66.2%Easy

Array, Counting +3· 22 companies

1. Two SumVideo

Solution57.8%Easy

Array, Hash Table· 127 companies

206. Reverse Linked ListVideo

Solution81.0%Easy

Linked List, Recursion· 34 companies

876. Middle of the Linked ListVideo

Solution82.3%Easy

Linked List, Two Pointers· 13 companies

21. Merge Two Sorted ListsVideo

Solution68.7%Easy

Linked List, Recursion· 36 companies

160. Intersection of Two Linked ListsVideo

Solution64.6%Easy

Hash Table, Linked List +1· 13 companies

141. Linked List CycleVideo

Solution55.2%Easy

Hash Table, Linked List +1· 24 companies

234. Palindrome Linked ListVideo

Solution58.8%Easy

Linked List, Recursion +2· 17 companies

26. Remove Duplicates from Sorted ArrayVideo

Solution63.7%Easy

Array, Two Pointers· 26 companies

485. Max Consecutive OnesVideo

Solution66.0%Easy

Array· 14 companies

455. Assign CookiesVideo

Solution55.4%Easy

Array, Greedy +2· 9 companies

225. Implement Stack using QueuesVideo

Solution70.1%Easy

Design, Queue +1· 9 companies

232. Implement Queue using StacksVideo

Solution70.2%Easy

Design, Queue +1· 12 companies

20. Valid ParenthesesVideo

Solution45.2%Easy

Stack, String· 113 companies

496. Next Greater Element IVideo

Solution76.5%Easy

Array, Hash Table +2· 17 companies

13. Roman to IntegerVideo

Solution67.0%Easy

Hash Table, Math +1· 36 companies

14. Longest Common PrefixVideo

Solution48.6%Easy

String, Trie· 60 companies

242. Valid AnagramVideo

Solution68.5%Easy

Hash Table, Sorting +1· 40 companies

94. Binary Tree Inorder TraversalVideo

Solution80.4%Easy

Binary Tree, Depth-First Search +2· 7 companies

144. Binary Tree Preorder TraversalVideo

Solution76.6%Easy

Binary Tree, Depth-First Search +2· 5 companies

145. Binary Tree Postorder TraversalVideo

Solution79.0%Easy

Binary Tree, Depth-First Search +2· 5 companies

104. Maximum Depth of Binary TreeVideo

Solution78.6%Easy

Binary Tree, Breadth-First Search +2· 17 companies

543. Diameter of Binary TreeVideo

Solution66.4%Easy

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

110. Balanced Binary TreeVideo

Solution59.2%Easy

Binary Tree, Depth-First Search +1· 9 companies

100. Same TreeVideo

Solution68.0%Easy

Binary Tree, Breadth-First Search +2· 9 companies

101. Symmetric TreeVideo

Solution62.1%Easy

Binary Tree, Breadth-First Search +2· 11 companies

700. Search in a Binary Search TreeVideo

Solution83.1%Easy

Binary Search Tree, Binary Tree +1· 5 companies

108. Convert Sorted Array to Binary Search TreeVideo

Solution75.9%Easy

Array, Binary Search Tree +3· 9 companies

653. Two Sum IV - Input is a BSTVideo

Solution63.7%Easy

Binary Search Tree, Binary Tree +5· 8 companies

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