Problem database last updated: June 20, 2025
3 problems · 0 Easy, 0 Medium, 3 Hard · Ranked #347 of 458
0 Easy
0% · avg 23%
0 Medium
0% · avg 59%
3 Hard
100% · avg 18%
Based on 3 reported problems, WorldQuant interviews are significantly harder than average - 100% Hard vs 18% across all companies.
Compared to the industry average, WorldQuant puts unusual emphasis on heap-priority-queue (66.7% of problems, 11x the industry average), dynamic-programming (66.7% of problems, 3.4x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are heap-priority-queue (66.7%), dynamic-programming (66.7%), two-pointers (33.3%), design (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Find Median from Data Stream The median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value, and the median is the mean of the two midd... | Hard | Very Likely | two-pointersdesignsorting | Solve |
Regular Expression Matching Given an input string s and a pattern p, implement regular expression matching with support for '.' and '' where: | Hard | Very Likely | stringdynamic-programmingrecursion | Solve |
Minimum Number of Visited Cells in a Grid You are given a 0-indexed m x n integer matrix grid. Your initial position is at the top-left cell (0, 0). | Hard | Very Likely | arraydynamic-programmingstack | Solve |
Find Median from Data Stream
SolveThe median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value, and the median is the mean of the two midd...
Regular Expression Matching
SolveGiven an input string s and a pattern p, implement regular expression matching with support for '.' and '' where:
Minimum Number of Visited Cells in a Grid
SolveYou are given a 0-indexed m x n integer matrix grid. Your initial position is at the top-left cell (0, 0).
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent WorldQuant interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
WorldQuant interviews focus heavily on heap-priority-queue, dynamic-programming, two-pointers problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. WorldQuant interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
Looking for more companies? Browse all 458 companies in our directory, or sharpen your fundamentals with our free data structure visualizers and AI-powered DSA tutor.
WorldQuant has been reported to ask 3 distinct coding problems. The most common topics are heap-priority-queue, dynamic-programming, two-pointers. 0 are Easy difficulty, 0 are Medium, and 3 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 3 reported problems, WorldQuant interviews are significantly harder than average - 100% Hard vs 18% across all companies. 0% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
Start with the highest-frequency problems listed on this page. Focus on the core topics: heap-priority-queue, dynamic-programming, two-pointers. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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