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Grokking the Coding Interview Patterns in Go

Solution: Car Pooling

Explore how to determine if all carpool trips can be completed without exceeding the car's fixed capacity by simulating passenger changes on a timeline. Learn to apply interval and difference array patterns to efficiently manage overlapping trip intervals and validate capacity constraints throughout the journey.

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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] represents a group of numPassengersi\text{numPassengers}_i that must be picked up at location fromi\text{from}_i and dropped off at location toi\text{to}_i ...