Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Python

Solution: Car Pooling

Understand how to solve the car pooling problem by tracking passenger pickup and drop-off events with a timeline approach. This lesson demonstrates using difference arrays to simulate trips, ensuring the car capacity is never exceeded, while maintaining an efficient linear time and constant space solution.

We'll cover the following...

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] ...