保留3位小数的浮点数

状态	递交者	时间	内存	语言	代码	递交时间
AC	fupeixin	26ms	412 KiB	C++17(O2)	138 Bytes	2023-10-26 18:36:36
AC	TS_1	28ms	416 KiB	C++17(O2)	118 Bytes	2023-11-21 20:12:39
AC	guantianqi	28ms	412 KiB	C++17(O2)	109 Bytes	2023-10-19 19:00:43
AC	jiajingwen	29ms	412 KiB	C++17(O2)	119 Bytes	2023-10-10 19:21:00
AC	geyutong	30ms	768 KiB	C++17(O2)	109 Bytes	2024-1-30 9:47:51
AC	M_I_H_U_Y_O	31ms	516 KiB	C++17(O2)	118 Bytes	2023-12-19 20:42:19
AC	gcx1301	32ms	764 KiB	C++17(O2)	116 Bytes	2024-1-30 10:01:48
AC	munrolashi123	32ms	516 KiB	C++17(O2)	129 Bytes	2023-12-21 18:36:41
AC	zhangyongwu	34ms	764 KiB	C++17(O2)	113 Bytes	2024-1-29 8:16:52