Leetcode Problem 1776. Car Fleet II
Leetcode Solutions
Monotonic Stack Approach
- Initialize an empty stack to store the indices of cars that may collide in the future.
- Initialize a result list with the same length as the input list, filled with -1, representing that the car does not collide with any other car.
- Iterate over the cars in reverse order. a. For each car, calculate its potential collision time with the car at the top of the stack. b. If the current car is slower than the car at the top of the stack or if the collision time is greater than the collision time of the car at the top of the stack, pop the car from the stack. c. If the stack is not empty, update the result for the current car with the collision time. d. Push the current car's index onto the stack.
- Return the result list.
Brute Force Simulation
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