Problem database last updated: June 20, 2025
4 problems · 1 Easy, 2 Medium, 1 Hard · Ranked #290 of 458
1 Easy
25% · avg 23%
2 Medium
50% · avg 59%
1 Hard
25% · avg 18%
Based on 4 reported problems, Sumo Logic interviews are slightly harder than average - 25% Hard vs 18% across all companies.
Compared to the industry average, Sumo Logic puts unusual emphasis on string (50% of problems, 1.8x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (75%), string (50%), union-find (25%), graph (25%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Satisfiability of Equality Equations You are given an array of strings equations that represent relationships between variables where each string equations[i] is of length 4 and takes one of two di... | Medium | Very Likely | arraystringunion-find | Solve |
Decode String Given an encoded string, return its decoded string. | Medium | Likely | stringstackrecursion | Solve |
First Missing Positive Given an unsorted integer array nums. Return the smallest positive integer that is not present in nums. | Hard | Likely | arrayhash-table | Solve |
Flood Fill You are given an image represented by an m x n grid of integers image, where image[i][j] represents the pixel value of the image. You are also given three integ... | Easy | Likely | arraydepth-first-searchbreadth-first-search | Solve |
Satisfiability of Equality Equations
SolveYou are given an array of strings equations that represent relationships between variables where each string equations[i] is of length 4 and takes one of two di...
Decode String
SolveGiven an encoded string, return its decoded string.
First Missing Positive
SolveGiven an unsorted integer array nums. Return the smallest positive integer that is not present in nums.
Flood Fill
SolveYou are given an image represented by an m x n grid of integers image, where image[i][j] represents the pixel value of the image. You are also given three integ...
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Sumo Logic interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Sumo Logic interviews focus heavily on array, string, union-find 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. Sumo Logic 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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Sumo Logic has been reported to ask 4 distinct coding problems. The most common topics are array, string, union-find. 1 are Easy difficulty, 2 are Medium, and 1 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 4 reported problems, Sumo Logic interviews are slightly harder than average - 25% Hard vs 18% across all companies. 50% 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, union-find. 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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