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Bitgo LeetCode Questions 2026

Browse LeetCode problems frequently asked by Bitgo. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 10 July 2026

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Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Check if an Original String Exists Given Two Encoded Strings	HARD	100%	StringDynamic Programming
Number of Islands	MEDIUM	87.5%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Longest Substring with At Most K Distinct Characters	MEDIUM	62.5%	Hash TableStringSliding Window
Gas Station	MEDIUM	87.5%	ArrayGreedy
Bus Routes	HARD	75%	ArrayHash TableBreadth-First Search
Trapping Rain Water	HARD	62.5%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
LRU Cache	MEDIUM	87.5%	Hash TableLinked ListDesignDoubly-Linked List
Lowest Common Ancestor of a Binary Tree	MEDIUM	62.5%	TreeDepth-First SearchBinary Tree
Subarray Sum Equals K	MEDIUM	62.5%	ArrayHash TablePrefix Sum
Largest Rectangle in Histogram	HARD	62.5%	ArrayStackMonotonic Stack
Course Schedule	MEDIUM	62.5%	Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort
Longest Palindromic Substring	MEDIUM	75%	Two PointersStringDynamic Programming
Longest Substring Without Repeating Characters	MEDIUM	62.5%	Hash TableStringSliding Window
Vertical Order Traversal of a Binary Tree	HARD	62.5%	Hash TableTreeDepth-First SearchBreadth-First SearchSortingBinary Tree
Longest Consecutive Sequence	MEDIUM	62.5%	ArrayHash TableUnion-Find

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