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
        new = sorted(intervals, key=lambda x: x.start)
        if not intervals:
            return []
        s = new[0].start
        e = new[0].end
        r = []
        for i, x in enumerate(new):
            if i == new.__len__() - 1:
                r.append(Interval(s, e))
            else:
                if e < new[i+1].start and e < new[i+1].end:
                    r.append(Interval(s, e))
                    s = new[i+1].start
                    e = new[i+1].end
                else:
                    e = max(new[i+1].end, e)  
        return r