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Solution: Car Pooling

Explore the car pooling problem where you simulate passenger pick-up and drop-off events using a timeline approach. Understand how to efficiently track passenger counts with a difference array pattern to ensure the car's capacity is never exceeded, applying merge intervals logic. Learn to implement a linear time solution ideal for coding interviews.

Statement

You are given a car with a fixed number of seats, denoted by an integer capacity. The car only travels in one direction — eastward — and does not make any U-turns.

You are also provided with an array, trips, where each element trips[i] =[numPassengersi,fromi,toi]= [\text{numPassengers}_i, \text{from}_i, \text{to}_i] ...