题目数据范围是long long
by gsq7474741 @ 2018-04-07 00:29:06
数据范围
by 初音Miku @ 2018-05-04 20:22:07
这就GG了
by Mikamedo @ 2018-05-06 17:36:38
我更惨，输出时等号旁边没打空格
by Mikamedo @ 2018-05-06 17:38:23