Browse LeetCode problems frequently asked by Trexquant. Filter by difficulty and timeframe to focus your interview prep.
Last updated: 20 Feb 2026
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Walmart Labs
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30 days
3 months
6 months
More than 6 months
All
Easy
Medium
Hard
All
Problem
Difficulty
Frequency
Topics
Brick Wall
MEDIUM
100%
ArrayHash Table
Max Difference You Can Get From Changing an Integer
MEDIUM
100%
MathGreedy
Letter Combinations of a Phone Number
MEDIUM
87.5%
Hash TableStringBacktracking
3Sum
MEDIUM
87.5%
ArrayTwo PointersSorting
Koko Eating Bananas
MEDIUM
87.5%
ArrayBinary Search
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