leetcode1272

class Solution:
    def removeInterval(self, intervals: List[List[int]], toBeRemoved: List[int]) -> List[List[int]]:
        n = len(intervals)
        res = []
        for i in range(n):
            curent = intervals[i]
            if curent[1] <= toBeRemoved[0] or curent[0] >= toBeRemoved[1]:
                res.append(curent)
            elif curent[0] >= toBeRemoved[0] and curent[1] <= toBeRemoved[1]:
                continue
            elif curent[0] <= toBeRemoved[0] and curent[1] >= toBeRemoved[1]:
                if curent[0] != toBeRemoved[0]:
                    res.append([curent[0],toBeRemoved[0]])
                if toBeRemoved[1] != curent[1]:
                    res.append([toBeRemoved[1],curent[1]])
            elif curent[0] <= toBeRemoved[0] and curent[1] >= toBeRemoved[0] and curent[1] <= toBeRemoved[1]:
                if curent[0] != toBeRemoved[0]:
                    res.append([curent[0],toBeRemoved[0]])
            elif curent[1] >= toBeRemoved[1] and curent[0] <= toBeRemoved[1] and curent[0] >= toBeRemoved[0]:
                if toBeRemoved[1] != curent[1]:
                    res.append([toBeRemoved[1],curent[1]])
        return res

分6种情况讨论（第一个if语句是两种情况）