Flexera coding interview
questions, leaked.
2 problems reported across recent Flexera interviews. Top patterns: string, stack, hash table. The list below is what most reported candidates actually saw, plus the honest play if you can't grind all of it.
Flexera's coding assessments are shallow but sharp. You're looking at two problems total, one easy and one medium, which means there's almost no room for variance. The medium problem pulls from five different algorithmic areas at once: hash tables, strings, stacks, greedy logic, and heaps. The easy one softballs you with a string-and-stack simulation. You have maybe 45 minutes to prove you can switch contexts fast. If you hit a wall on the medium problem mid-assessment, StealthCoder will surface a working solution in seconds, invisible to the proctor.
Top problems at Flexera
| # | Problem | Diff | Frequency | Pass % | Patterns |
|---|---|---|---|---|---|
| 01 | Lexicographically Minimum String After Removing Stars | MEDIUM | 100.0 | 51% | Hash Table · String · Stack |
| 02 | Clear Digits | EASY | 100.0 | 83% | String · Stack · Simulation |
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 Flexera OA. The proctor cannot see it. Screen share cannot detect it. Built by an engineer at a top-10 tech company who can solve these problems cold but didn't want to trust himself in a 90-minute screen share.
Get StealthCoder- string2 · 100%
- stack2 · 100%
- hash table1 · 50%
- greedy1 · 50%
- heap priority queue1 · 50%
- simulation1 · 50%
String and stack patterns dominate the Flexera dataset, appearing in both problems. The medium problem, 'Lexicographically Minimum String After Removing Stars,' is a hybrid that tests whether you can recognize when a greedy approach, a stack, or a heap solves the same problem. Most candidates freeze when a single prompt references five techniques. The easy problem, 'Clear Digits,' is a warmup but telegraphs the company's love of stack-based string manipulation. Drill stack-based string problems hard. Greedy and heap intuition matter less here than clean stack implementation. The assessment is short enough that you can't recover from misreading the medium problem, so StealthCoder is your hedge if you misunderstand the constraint mid-OA.
Companies with similar patterns
If you prepped for Flexera, these companies recycle ~60% of the same topics.
You've seen the list.
Now make sure you pass Flexera.
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 at a top-10 tech company who can solve these problems cold but didn't want to trust himself in a 90-minute screen share. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Flexera interview FAQ
How many string problems should I solve before a Flexera assessment?+
At least 10 to 15, with heavy focus on stack-based string manipulation. Both Flexera problems are string-forward. Clear Digits is a direct string-and-stack drill. Lexicographically Minimum String combines greedy logic with stack. Stack fluency with strings is non-negotiable.
Is the easy problem really easy?+
Yes. Clear Digits is a straightforward simulation where you remove digits and their preceding characters. It's a confidence-builder. Don't overthink it. The medium problem is where Flexera separates candidates, so spend most of your prep time on multi-technique hybrids like Lexicographically Minimum String.
Should I study heap problems for Flexera?+
Lightly. Heap appears in one problem (Lexicographically Minimum String), but it's not the only solution. Stack or greedy often works. Understand heap basics and when a priority queue makes a string problem faster, but don't grind heap problems at the expense of stack drills.
What do I study first: greedy or hash tables?+
Stack first, then greedy. Both problems involve stacks, so that's your foundation. Greedy intuition matters for Lexicographically Minimum String. Hash tables appear once. Stack competence will carry you further on this specific assessment.
Is two problems enough data to predict the full interview loop?+
No. This is likely a subset of a larger assessment or a screening round. Treat these two as representative of Flexera's style: string manipulation, stack thinking, and multi-concept problems. Don't assume all problems follow this pattern, but assume your weak spots in these areas will hurt you.