Get Min Operations
Reported by candidates from Rubrik's online assessment. Pattern, common pitfall, and the honest play if you blank under the timer.
You're looking at a Rubrik OA from November 2024 with a problem titled 'Get Min Operations.' This is the kind of question that feels deceptively simple until you realize there's a state-space trick hiding inside. The OA is testing whether you can recognize a shortest-path or BFS pattern disguised as an optimization problem. StealthCoder sits invisible during your live attempt, ready to feed you the approach if the pattern doesn't click in the first 90 seconds.
Pattern and pitfall
Without the full problem text, the title 'Get Min Operations' almost certainly points to a dynamic-programming or breadth-first-search problem where you're finding the minimum number of steps or transformations to reach a target state. The pattern is usually: start from an initial state, explore all valid next states, and track the minimum cost or operations needed. Common pitfall is trying a greedy approach when the optimal solution requires exploring multiple paths. BFS guarantees you find the shortest path in an unweighted graph of states. When you freeze during the live OA, StealthCoder can confirm whether this is state-space search and nudge you toward BFS or dynamic programming setup.
The honest play: practice the pattern, and have StealthCoder ready for the one you didn't see coming.
You can drill Get Min Operations cold, or you can hedge it. StealthCoder runs invisibly during screen share and surfaces a working solution in under 2 seconds. The proctor sees the IDE. They don't see what's behind it. Built for the candidate who saw this exact problem leak two days before his OA and wondered if anyone had a play.
Get StealthCoderRelated leaked OAs
This OA pattern shows up on LeetCode as minimum operations to reduce x to zero. If you have time before the OA, drill that.
You've seen the question.
Make sure you actually pass Rubrik's OA.
Rubrik reuses patterns across OAs. Built for the candidate who saw this exact problem leak two days before his OA and wondered if anyone had a play. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Get Min Operations FAQ
What does 'Get Min Operations' typically mean in a coding OA?+
It usually means finding the minimum number of steps, moves, or transformations to go from an initial state to a target state. Think: minimum swaps, minimum additions, minimum deletions. The trick is recognizing it as a shortest-path problem, not a greedy one.
Should I jump straight to dynamic programming or BFS?+
BFS first. If the problem has a clear state and you can enumerate all valid next states from any state, BFS guarantees the minimum operations count. DP works too, but BFS is often clearer to code quickly under pressure.
How do I spot whether this is a state-space search problem?+
Can you represent your progress as a single state object or value. Can you generate the next valid states from the current one. Do you need the absolute minimum, not just any solution. Yes to all three. BFS it.
What's the most common mistake on 'min operations' problems?+
Assuming greedy works. Candidates try to make one locally optimal choice and hope it chains together. State-space search is often non-greedy. You need to explore branches, track visited states, and compare path lengths.
Can I code this fast enough in 60-90 minutes if I blank?+
Yes. BFS template is standard: queue, visited set, loop until queue empty, explore neighbors, track distance. Write it mechanical, no fancy optimization needed. Clean code beats slow insight on an OA timer.