判断数正负

状态	递交者	时间	内存	语言	代码	递交时间
AC	wangyuxin	14ms	21 MiB	C++14(O2)	202 Bytes	2026-8-30 10:27:25
AC	weiruoxi	16ms	21 MiB	C++14(O2)	207 Bytes	2026-9-27 9:13:18
AC	wangyichen	17ms	21 MiB	C++14(O2)	211 Bytes	2026-9-27 9:25:39
AC	zhangmingrui	17ms	21 MiB	C++14(O2)	169 Bytes	2026-9-27 9:12:25
AC	dingbowen	17ms	21 MiB	C++14(O2)	197 Bytes	2026-9-27 9:16:56
AC	liangxuanming	18ms	21 MiB	C++14(O2)	210 Bytes	2026-9-27 9:29:00
AC	gaoyibo	18ms	21 MiB	C++14(O2)	206 Bytes	2026-8-25 10:31:35
AC	kayn	18ms	21 MiB	C++14(O2)	405 Bytes	2026-9-27 9:12:04
AC	sunjingwei	18ms	21 MiB	C++14(O2)	209 Bytes	2026-9-27 9:09:22
AC	huangsichen	18ms	21 MiB	C++14(O2)	226 Bytes	2026-9-27 10:31:37
AC	xiezhehan	18ms	21 MiB	C++14(O2)	219 Bytes	2026-9-27 9:07:12