Problem database last updated: June 20, 2025
6 problems · 1 Easy, 3 Medium, 2 Hard · Ranked #224 of 458
1 Easy
17% · avg 23%
3 Medium
50% · avg 59%
2 Hard
33% · avg 18%
Based on 6 reported problems, Samsara interviews are significantly harder than average - 33% Hard vs 18% across all companies.
Compared to the industry average, Samsara puts unusual emphasis on sliding-window (33.3% of problems, 7.1x the industry average), binary-search (33.3% of problems, 3.8x the industry average), hash-table (33.3% of problems, 1.5x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (83.3%), sliding-window (33.3%), hash-table (33.3%), string (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Alternating Groups I There is a circle of red and blue tiles. You are given an array of integers colors. The color of tile i is represented by colors[i]: | Easy | Very Likely | arraysliding-window | Solve |
Alternating Groups II There is a circle of red and blue tiles. You are given an array of integers colors and an integer k. The color of tile i is represented by colors[i]: | Medium | Very Likely | arraysliding-window | Solve |
Valid Sudoku Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: | Medium | Very Likely | arrayhash-tablematrix | Solve |
Find Beautiful Indices in the Given Array I You are given a 0-indexed string s, a string a, a string b, and an integer k. | Medium | Very Likely | two-pointersstringbinary-search | Solve |
Text Justification Given an array of strings words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justifie... | Hard | Likely | arraystringsimulation | Solve |
Number of Flowers in Full Bloom You are given a 0-indexed 2D integer array flowers, where flowers[i] = [starti, endi] means the ith flower will be in full bloom from starti to endi (inclusive)... | Hard | Likely | arrayhash-tablebinary-search | Solve |
Alternating Groups I
SolveThere is a circle of red and blue tiles. You are given an array of integers colors. The color of tile i is represented by colors[i]:
Alternating Groups II
SolveThere is a circle of red and blue tiles. You are given an array of integers colors and an integer k. The color of tile i is represented by colors[i]:
Valid Sudoku
SolveDetermine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules:
Find Beautiful Indices in the Given Array I
SolveYou are given a 0-indexed string s, a string a, a string b, and an integer k.
Text Justification
SolveGiven an array of strings words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justifie...
Number of Flowers in Full Bloom
SolveYou are given a 0-indexed 2D integer array flowers, where flowers[i] = [starti, endi] means the ith flower will be in full bloom from starti to endi (inclusive)...
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Samsara interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Samsara interviews focus heavily on array, sliding-window, hash-table 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. Samsara 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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Samsara has been reported to ask 6 distinct coding problems. The most common topics are array, sliding-window, hash-table. 1 are Easy difficulty, 3 are Medium, and 2 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 6 reported problems, Samsara interviews are significantly harder than average - 33% 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, sliding-window, hash-table. 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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