Browse LeetCode problems frequently asked by Criteo. Filter by difficulty and timeframe to focus your interview prep.
Last updated: 20 Feb 2026
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30 days
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More than 6 months
All
Easy
Medium
Hard
All
Problem
Difficulty
Frequency
Topics
Intersection of Two Arrays
EASY
100%
ArrayHash TableTwo PointersBinary SearchSorting
Valid Parentheses
EASY
75%
StringStack
Flood Fill
EASY
87.5%
ArrayDepth-First SearchBreadth-First SearchMatrix
Ransom Note
EASY
75%
Hash TableStringCounting
Two Sum
EASY
87.5%
ArrayHash Table
Search in Rotated Sorted Array
MEDIUM
87.5%
ArrayBinary Search
Random Pick with Weight
MEDIUM
87.5%
ArrayMathBinary SearchPrefix SumRandomized
Maximum Subarray
MEDIUM
75%
ArrayDivide and ConquerDynamic Programming
Intersection of Two Arrays II
EASY
75%
ArrayHash TableTwo PointersBinary SearchSorting
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