排序和合并列表

Question

两个名单上有两个列表，

[[1, 2], [4, 7], [11, 13], [15, 21]] 

[[3, 4], [5,12], [23, 25]] 

我想这样的输出。

[[1, 2], [3,13], [15, 21], [23, 25]] 

任何人都可以帮助我吗？

Answer 1

从Merging a list of time-range tuples that have overlapping time-ranges算法完全适用于您的输入，只要你将它们连接起来：

def merge(times): 
    saved = list(times[0]) 
    for st, en in sorted([sorted(t) for t in times]): 
     if st <= saved[1]: 
      saved[1] = max(saved[1], en) 
     else: 
      yield tuple(saved) 
      saved[0] = st 
      saved[1] = en 
    yield tuple(saved) 

lst1 = [[1, 2], [4, 7], [11, 13], [15, 21]] 
lst2 = [[3, 4], [5,12], [23, 25]] 

print list(merge(sorted(lst1 + lst2))) 

输出：

[(1, 2), (3, 13), (15, 21), (23, 25)]