The Number of Full Rounds You Have Played
A medium-tier problem at 43% community acceptance, tagged with Math, String. Reported in interviews at General Motors and 0 others.
You've seen this problem once, maybe twice, and your brain didn't stick on the pattern. General Motors asked it, and at 43% acceptance it's a medium that catches people off-guard. The trick isn't algorithmic complexity. It's parsing the problem statement correctly and recognizing what "full round" actually means in context. You'll know it when you see it, but if you blank during the live OA, StealthCoder solves it in seconds, invisible to the proctor. This is the kind of problem where 20 minutes of wasted time trying the wrong approach costs you momentum.
Companies that ask "The Number of Full Rounds You Have Played"
The Number of Full Rounds You Have Played is the kind of problem that decides whether you pass. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds. Invisible to screen share. The proctor sees nothing. Made by an Amazon engineer who watched the leaked-problem repo become an industry secret. He decided you should have it too.
Get StealthCoderThe problem hinges on string parsing and simple math, not data structures or graph theory. Candidates usually misunderstand the definition of a full round or overthink the counting logic. The solution often requires iterating through a string representation of game state and detecting when all participants have completed an equal number of turns or matches. Common failure: treating it as a simulation problem when it's really just careful interpretation. Math and String handling are the only topics because you're counting and extracting substrings, not building trees or using heaps. If you've prepped hard on dynamic programming but this problem hits your OA, StealthCoder is the hedge. It reads the problem definition, extracts the key constraint, and surfaces the correct formula or loop structure in real time.
Pattern tags
You know the problem.
Make sure you actually pass it.
The Number of Full Rounds You Have Played recycles across companies for a reason. It's medium-tier, and most candidates blank under the timer. StealthCoder is the hedge: an AI overlay invisible during screen share. It reads the problem and surfaces a working solution in under 2 seconds. Made by an Amazon engineer who watched the leaked-problem repo become an industry secret. He decided you should have it too. Works on HackerRank, CodeSignal, CoderPad, and Karat.
The Number of Full Rounds You Have Played interview FAQ
Is this problem really asked at General Motors?+
Yes, confirmed in recent reports. General Motors uses coding assessments that include math-heavy string parsing problems. It's not a FAANG staple, which means fewer practice problems exist online and candidates are less prepared for it. That's an information gap you can close.
What makes 43% acceptance so tricky?+
Below 50% means the problem either requires a non-obvious insight or candidates commonly misread the definition of a full round. Both happen here. The math is simple once you understand what you're counting, but getting there requires careful problem decomposition, not algorithmic mastery.
How do String and Math topics combine here?+
You parse a string input (rounds, player IDs, or game states) using string methods, then apply basic arithmetic to count or verify completed rounds. No regex needed, no complex formulas. Just careful iteration and comparison logic.
What's the most common wrong approach?+
Overthinking it as a simulation or state-machine problem. Candidates build unnecessary data structures when the answer is a direct count or formula. Read the problem twice to lock down the definition of full round before coding.
Can I solve this without memorizing a specific trick?+
Yes. This isn't a pattern-matching problem like LCS or DP. Clear problem reading and basic loops work. The trick is discipline: write out what each word means, count what the problem asks, then code. Speed comes from repetition, not flash insight.
Want the actual problem statement? View "The Number of Full Rounds You Have Played" on LeetCode →