Samsara coding interview
questions, leaked.
6 problems reported across recent Samsara interviews. Top patterns: array, hash table, string. The list below is what most reported candidates actually saw, plus the honest play if you can't grind all of it.
Samsara's coding interview hits you with six problems spread across easy, medium, and hard. Arrays dominate the list, showing up in five of the top problems. You'll see sliding-window patterns, hash-table lookups, and string work that looks deceptively straightforward until you're stuck on edge cases mid-assessment. Most candidates prep by grinding random lists. If you hit a wall during the live OA on something like Valid Sudoku or Text Justification, StealthCoder solves it invisible to the proctor, buying you time to move on.
Top problems at Samsara
| # | Problem | Diff | Frequency | Pass % | Patterns |
|---|---|---|---|---|---|
| 01 | Alternating Groups II | MEDIUM | 100.0 | 60% | Array · Sliding Window |
| 02 | Alternating Groups I | EASY | 100.0 | 68% | Array · Sliding Window |
| 03 | Valid Sudoku | MEDIUM | 85.1 | 62% | Array · Hash Table · Matrix |
| 04 | Find Beautiful Indices in the Given Array I | MEDIUM | 85.1 | 38% | Two Pointers · String · Binary Search |
| 05 | Text Justification | HARD | 74.2 | 48% | Array · String · Simulation |
| 06 | Number of Flowers in Full Bloom | HARD | 65.5 | 57% | Array · Hash Table · Binary Search |
Frequencies derived from public community-tagged interview reports. Click a row to view on LeetCode.
You have a week, maybe less. You can't out-grind the list above. StealthCoder runs invisibly during the actual Samsara OA. The proctor cannot see it. Screen share cannot detect it. Built by an engineer who got tired of watching his cohort grind for six months and still get filtered at the OA stage.
Get StealthCoder- array5 · 83%
- hash table2 · 33%
- string2 · 33%
- binary search2 · 33%
- sliding window2 · 33%
- matrix1 · 17%
- two pointers1 · 17%
- rolling hash1 · 17%
- string matching1 · 17%
- hash function1 · 17%
The distribution is array-heavy. Sliding-window patterns appear twice, so nail Alternating Groups I and II first. Hash tables and binary search each show up twice, but they're secondary. String matching feels like a curveball until you realize it's bundled with binary search and rolling hash in Find Beautiful Indices. The two hard problems, Text Justification and Number of Flowers in Full Bloom, require simulation and multi-step logic that's easy to botch under time pressure. Study the easy and medium problems in order of frequency: arrays and sliding windows first, hash tables second, then binary search. When you sit down for the actual assessment, if you blank on the string-matching or simulation patterns you didn't drill enough, StealthCoder is your invisible safety net.
Companies with similar patterns
If you prepped for Samsara, these companies recycle ~60% of the same topics.
You've seen the list.
Now make sure you pass Samsara.
Memorizing every problem above in a week is a fantasy. StealthCoder is the hedge: an AI overlay that's invisible during screen share. It reads the problem on screen and surfaces a working solution in under 2 seconds. Built by an engineer who got tired of watching his cohort grind for six months and still get filtered at the OA stage. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Samsara interview FAQ
Should I memorize all six Samsara problems or focus on patterns?+
Focus on patterns. Arrays and sliding window appear most. Drill Alternating Groups I and II until you can code them without thinking, then move to hash-table and binary-search problems. The exact problem names won't come up, but the patterns will. Seeing five array problems means your foundation matters more than memorization.
How much time should I spend on the hard problems?+
Text Justification and Number of Flowers in Full Bloom are hard for a reason. Spend time understanding the logic, not memorizing code. Text Justification requires careful simulation. Number of Flowers needs binary search and prefix-sum thinking. If you can't crack them after solid effort, that's what the assessment is for. Don't waste a week on one problem.
Is hash table important for Samsara or just a side topic?+
Hash table appears in two of the top problems: Valid Sudoku and Number of Flowers. It's secondary to arrays and sliding window, but it's not optional. Two problems out of six means it could be a tiebreaker. Spend a day on hash-table fundamentals, then move on. Don't skip it.
Do I need to study string matching and rolling hash separately?+
Find Beautiful Indices bundles them with binary search and two pointers. You don't need deep string-matching theory. Understand rolling hash conceptually so you can recognize when it's useful, then focus on the binary-search part of the problem. It's a medium, not a trap.
What's the fastest way to prep the array and sliding-window problems?+
Solve Alternating Groups I first, make sure you understand the circular logic. Then do Alternating Groups II, which adds a window-size parameter. The jump from easy to medium teaches you the pattern fast. Spend two to three hours on both, then move to the other topics. You'll nail the array foundation in a day.