Problem database last updated: June 20, 2025
3 problems · 1 Easy, 2 Medium, 0 Hard · Ranked #366 of 458
1 Easy
33% · avg 23%
2 Medium
67% · avg 59%
0 Hard
0% · avg 18%
Based on 3 reported problems, fourkites interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (67%) of questions are Medium difficulty, which is typical for companies that want to see solid fundamentals without excessive trick questions.
Compared to the industry average, fourkites puts unusual emphasis on dynamic-programming (66.7% of problems, 3.4x the industry average), string (66.7% of problems, 2.4x the industry average), array (100% of problems, 1.7x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (100%), string (66.7%), dynamic-programming (66.7%), greedy (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Longest Unequal Adjacent Groups Subsequence I You are given a string array words and a binary array groups both of length n. | Easy | Very Likely | arraystringdynamic-programming | Solve |
Longest Unequal Adjacent Groups Subsequence II You are given a string array words, and an array groups, both arrays having length n. | Medium | Very Likely | arraystringdynamic-programming | Solve |
Longest Subarray With Maximum Bitwise AND You are given an integer array nums of size n. | Medium | Very Likely | arraybit-manipulationbrainteaser | Solve |
Longest Unequal Adjacent Groups Subsequence I
SolveYou are given a string array words and a binary array groups both of length n.
Longest Unequal Adjacent Groups Subsequence II
SolveYou are given a string array words, and an array groups, both arrays having length n.
Longest Subarray With Maximum Bitwise AND
SolveYou are given an integer array nums of size n.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent fourkites interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
fourkites interviews focus heavily on array, string, dynamic-programming 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. fourkites 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.
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fourkites has been reported to ask 3 distinct coding problems. The most common topics are array, string, dynamic-programming. 1 are Easy difficulty, 2 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 3 reported problems, fourkites interviews are easier than average - only 0% Hard compared to 18% across all companies. 67% 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: array, string, dynamic-programming. 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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