Maximum Total Reward Using Operations I
A medium-tier problem at 30% community acceptance, tagged with Array, Dynamic Programming. Reported in interviews at Mitsogo and 0 others.
Maximum Total Reward Using Operations I is a medium-difficulty problem that shows up in online assessments, particularly at Mitsogo. With an acceptance rate around 30%, it's one of those problems where candidates either spot the pattern or they don't. The problem hinges on recognizing when the obvious greedy approach breaks down and why dynamic programming over the array structure actually solves it. If this hits your OA and you're unsure which direction to go, StealthCoder runs invisibly during your assessment and surfaces a working solution in seconds.
Companies that ask "Maximum Total Reward Using Operations I"
Maximum Total Reward Using Operations I 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 for the engineer who has done the work but might still blank with a webcam pointed at him.
Get StealthCoderThe trap here is assuming you can greedily pick rewards without worrying about order or dependencies. The actual constraint is that operations modify what you can access next, so past choices lock you into future branches. This is a classic DP problem where you build up the maximum reward by exploring all valid operation sequences. The key insight is that the problem structure forces you to decide at each step whether taking a reward now blocks a higher-value path later. Array iteration and state tracking are your tools. If you haven't drilled the exact pattern, StealthCoder is your hedge: it analyzes the constraint structure on screen and delivers the DP recurrence before you second-guess yourself.
Pattern tags
You know the problem.
Make sure you actually pass it.
Maximum Total Reward Using Operations I 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 for the engineer who has done the work but might still blank with a webcam pointed at him. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Maximum Total Reward Using Operations I interview FAQ
Is this really only asked at one company?+
The data shows Mitsogo as the primary reporter. That doesn't mean others don't ask it, just that it appears less frequently in public reports. Treat it as a moderate-probability problem, not a rare one. If you see Array and Dynamic Programming together in your OA, stay sharp.
What's the trick I'm missing if greedy doesn't work?+
Greedy fails because taking the highest reward now might block you from reaching a much higher reward later. You need to explore multiple operation sequences and cache results to avoid recomputing. That's DP. The state is typically your current position or remaining operations, and you build up the max from smaller subproblems.
How do I know if I should use top-down or bottom-up DP here?+
Top-down memoization (recursion with cache) is safer if the state space is sparse or the transitions are unclear. Bottom-up (iterative DP) is cleaner if you can nail down the order of computation early. For this problem, either works. Start with what you're confident coding live.
Does this problem test Array skills or mostly DP?+
Both. You iterate and index the array to simulate operations, but the hard part is the DP logic. If you're solid on DP recurrence but sloppy with array indexing, off-by-one errors will kill you. Double-check bounds before you submit.
How much time should I spend coding this in a real OA?+
If you see the DP structure in the first 5-7 minutes, push forward. If you're still unclear after 10 minutes, you might be missing the pattern entirely. That's when a quick solution reference (like StealthCoder) saves you from spiraling and moving to the next problem with confidence.
Want the actual problem statement? View "Maximum Total Reward Using Operations I" on LeetCode →