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Feature Spotlight

AI Helper Agent

Your personal coding assistant that gives hints, debugs code, optimizes solutions, and generates test cases — right inside the editor.

AI Helper
AI Helper
Coding Assistant
Medium
Give me a hint for Two Sum
Think about complements.

For each nums[i], the complement is target - nums[i].

What data structure gives O(1) lookup?
A hash map!
Exactly! Iterate once, store seen values.

Time: O(n), Space: O(n)
HintDebugOptimizeTestsExplain
Medium
Ask about this problem...

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