练7.2 保留12位小数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	yangjiakang	24ms	764 KiB	C++11	132 Bytes	2024-9-22 11:56:11
AC	mixinyue	26ms	764 KiB	C++11	133 Bytes	2024-3-31 9:29:46
AC	zhangyuanyuan	26ms	768 KiB	C++11	132 Bytes	2024-3-31 9:31:24
AC	zhutianle	27ms	568 KiB	C++11	134 Bytes	2024-3-31 9:49:54
AC	赵淼森	27ms	764 KiB	C++11	133 Bytes	2024-3-31 9:27:48
AC	weilaicheng	27ms	764 KiB	C++11	153 Bytes	2024-3-31 8:07:33
AC	mijunmin	27ms	536 KiB	C++11	119 Bytes	2024-3-31 9:52:19
AC	xumingyuan	28ms	536 KiB	C++11	156 Bytes	2024-3-31 10:41:43
AC	tongyizhen	28ms	768 KiB	C++11	133 Bytes	2024-3-31 9:42:49
AC	zhouzeyou	28ms	536 KiB	C++11	134 Bytes	2024-3-31 9:41:48
AC	zhengzihao	28ms	548 KiB	C++11	132 Bytes	2024-9-22 12:19:58
AC	manfen	30ms	768 KiB	C++11	141 Bytes	2024-10-6 9:27:09
AC	zhengziqi	30ms	764 KiB	C++11	132 Bytes	2024-9-22 11:46:27