这题是多组数据，但题目没写，读入加while
by vеctorwyx @ 2020-10-09 10:25:45
好像是多组数据，题目没说，反正我是加了个while就不tle了
by vеctorwyx @ 2020-10-09 10:28:30
@[vеctorwyx](/user/169422) 我一样
by Harley_Wu @ 2022-07-29 21:24:47