Leetcode 1222 Solution

This article provides solution to leetcode question 1222 (remove-covered-intervals)
Categories:
Tags:
Access this page by simply typing in "lcs 1222" in your browser address bar if you have bunnylol configured.

https://leetcode.com/problems/remove-covered-intervals

Solution

class Solution:
    def removeCoveredIntervals(self, intervals: List[List[int]]) -> int:
        intervals.sort(key=lambda v:(v[0], -v[1]))



        rbound = intervals[0][1]



        ans = 1
        for i in range(1, len(intervals)):
            left, right = intervals[i]
            if right > rbound:
                ans += 1
                rbound = right



        return ans