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Solution: Car Pooling

Understand how to determine if a car can complete all trips without exceeding its capacity by simulating passenger pickup and drop-off events using a timeline approach. This lesson teaches how to apply the merge intervals pattern and difference arrays to efficiently track passenger counts, ensuring capacity constraints are met throughout the journey.

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] ...