mediumNeetCode 150
Gas Station
Given gas available and cost to travel, find starting station Return index of starting station, or -1 if impossible Example: gas=[1,2,3,4,5], cost=[3,4,5,1,2] => 3
Gas Station looks straightforward, but it quietly checks whether you reach for the right lookup structure. Interviewers love it because it reveals your data-structure instincts and your edge-case discipline. The signal here is clean bookkeeping: know what you record and when you update it.
Arrays & HashingGreedy
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1Gas Stationmedium
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