Try starting from each station. Simulate the full journey.
stations, each simulation is . Total: .
Can you eliminate impossible starting points without full simulation?
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$ curl repovive.com/roadmaps/pattern-22/greedy/gas-station-why-naive-fails
░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░██████████████████████████████████████████████████████████████████████████