class Solution:
    def eraseOverlapIntervals(self, intervals: List[List[int]]) -> int:
        if len(intervals) == 0:
            return 0
        res = 0
        mins = -float("inf")
        for i in sorted(intervals,key=lambda i:i[1]):
            if i[0] >= mins:
                res += 1
                mins = i[1]
        return len(intervals) - res