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Solution: Gas Station

Explore how to apply greedy algorithms to solve the Gas Station problem by identifying the starting gas station index that allows completing a circular route. Understand the approach that focuses on current gas and costs at each station, optimizing for linear time complexity.

Statement

There are nn gas stations along a circular route, where the amount of gas at the ithi^{th} station is gas[i].

We have a car with an unlimited gas tank, and it costs cost[i] of gas to travel from the ithi^{th} station to the next (i+1)th(i+1)^{th} ...