Most Visited Sector in a Circular Track
A easy-tier problem at 59% community acceptance, tagged with Array, Simulation. Reported in interviews at Expedia and 0 others.
You're on a circular track with sectors, and you need to find which one gets visited most. Expedia has asked this. It sounds simple, simulate movement around a circle and count visits, but most candidates mess up the modulo arithmetic or the boundary conditions on the first try. The acceptance rate sits just under 60%, which means a lot of people either over-engineer it or trip on off-by-one errors. If this lands in your assessment and you blank on the circular indexing, StealthCoder will surface a clean solution in seconds, invisible to the proctor.
Companies that ask "Most Visited Sector in a Circular Track"
Most Visited Sector in a Circular Track 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. Built by an Amazon engineer who realized the OA tests how well you memorized 200 problems, not how well you code.
Get StealthCoderThe trick is treating the track as a circular array and simulating the visitor movement correctly. Most people get the concept right but fail on the modulo logic: forgetting to wrap properly when the next position exceeds track length, or confusing direction reversals. The naive approach is to simulate step by step, incrementing a visit count for each sector you land on. That works, but you need to handle the circular nature correctly. Array indexing and modulo operations are core here. Common pitfalls include off-by-one errors when indexing, incorrect wrap-around logic, or even losing track of the current position. The problem tests whether you can cleanly implement circular simulation without getting tangled in index boundaries. StealthCoder is the hedge if the circular logic trips you up during the live OA.
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Most Visited Sector in a Circular Track recycles across companies for a reason. It's easy-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. Built by an Amazon engineer who realized the OA tests how well you memorized 200 problems, not how well you code. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Most Visited Sector in a Circular Track interview FAQ
Is this really an easy problem?+
The acceptance rate is 59%, which contradicts the easy label. Most failures come from modulo and boundary mistakes, not algorithmic difficulty. The logic is straightforward; the execution details catch you.
What's the most common mistake?+
Incorrect modulo wrapping or forgetting to handle direction changes correctly. Candidates often forget that circular indices need careful handling, especially when movement changes direction or when summing up the visited sectors.
Do I need dynamic programming or just simulation?+
Pure simulation. Track your position, move according to the rules, count visits, and return the sector with the max count. No DP needed, but your index arithmetic must be bulletproof.
How does this relate to array and simulation topics?+
Array handles the sector storage and visit counts. Simulation is the movement logic itself. Together, they test whether you can manipulate circular arrays while tracking state through iterations.
Has Expedia asked this recently?+
Expedia is listed as the only company reporting it. Real data suggests it's a screening or phone-screen problem, not a final-round question, so expect clear acceptance criteria rather than edge-case traps.
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