「数论模板」欧拉函数（一）

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	Night	21ms	252 KiB	C++98	297 Bytes	2018-4-12 17:24:33
AC	Night	22ms	252 KiB	C++98	297 Bytes	2018-4-12 17:25:27
AC	cicuvc	22ms	2.1 MiB	C++98	374 Bytes	2018-7-10 8:44:52
AC	std_20201620	30ms	252 KiB	C++98	313 Bytes	2018-10-31 18:55:35
AC	std_20200653	31ms	252 KiB	C++98	297 Bytes	2018-10-28 22:35:58
AC	HakuroKawashiro	34ms	164 KiB	C++98	388 Bytes	2019-8-2 8:05:14
AC	20211335	35ms	252 KiB	C++98	316 Bytes	2019-7-16 16:52:19
AC	邱俊凯最帅	93ms	252 KiB	C++98	440 Bytes	2019-8-24 22:33:30
AC	C20211640	97ms	252 KiB	C++98	313 Bytes	2019-7-23 19:34:28