[CSP201403] 相反数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	棠蔺	39ms	424 KiB	C++20(O2)	438 Bytes	2025-5-3 20:43:07
AC	JimenezLi	41ms	508 KiB	C++20(O2)	415 Bytes	2025-5-4 10:03:39
AC	numpy1314	42ms	408 KiB	C++20(O2)	477 Bytes	2025-5-5 17:10:19
AC	CYMario	46ms	464 KiB	C++20(O2)	288 Bytes	2025-5-3 15:31:00