logistics

Looks like an algorithms question; it's actually an operations question wearing one. The candidates who fail reach for 'solve VRP'; the ones who pass design for the 2pm reality that invalidates every morning plan.

A port is three coupled scheduling problems in a single prompt: where ships dock, which cranes work them, and where containers land in the yard. The strong answer decomposes them, names where they couple, and refuses to solve the whole thing as one giant optimizer.