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]:
        # write code here
        if len(intervals) < 2:
            return intervals
        intervals = sorted(intervals,key=lambda x:x.start)
        flter = []
        front = intervals[0]
        for i in intervals[1:]:
            if i.start <= front.end:
                i.start = front.start
                i.end = max(i.end,front.end)
            else:
                flter.append(front)
            front = i
        flter.append(front)
        return flter