题解 | 合并区间

# class Interval:
#     def __init__(self, a=0, b=0):
#         self.start = a
#         self.end = b
#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param intervals Interval类一维数组 
# @return Interval类一维数组
#
class Solution:
    def merge(self , intervals: List[Interval]) -> List[Interval]:
        if not intervals:
            return[]
        intervals.sort(key=lambda x:x.start)
        merged=[]
        merged.append(intervals[0])
        for i in range(len(intervals)):
            if intervals[i].start<= merged[-1].end:
                merged[-1].end=max(merged[-1].end,intervals[i].end)
            else:
                merged.append(intervals[i])
        return merged         

#26 秋招刷题