881. Boats to Save People

https://leetcode.com/problems/boats-to-save-people

Python

class Solution:
    def numRescueBoats(self, people: List[int], limit: int) -> int:
        people.sort()

        left, right = 0, len(people)-1
        counter = 0

        while left <= right:
            if people[right] + people[left] <= limit:
                right -= 1
                left += 1
            else:
                right -= 1
            counter += 1

        return counter