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Quick Summary
Simulate order processing across multiple shoppers to calculate average customer wait times.
Determine the minimum number of shoppers required to keep the average wait time at or below a threshold k.
Return -1 if the inherent duration of orders makes the target average unattainable regardless of shopper count.
What This Tests
Monotonic property identification for optimization problems
Priority queue simulation for resource allocation
Binary search over a discrete solution space
Feasibility bounding and edge case handling
Common Patterns
Binary Search on Answer
Heap / Priority Queue
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Greedy
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Input
orders =
k =
Output
Expected
