判断数正负

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	杨珂曦	12ms	768 KiB	C++14(O2)	216 Bytes	2025-10-5 11:23:19
AC	陈国瑞	13ms	820 KiB	C++14(O2)	330 Bytes	2025-7-15 17:21:14
AC	白力予	13ms	808 KiB	C++14(O2)	215 Bytes	2025-8-7 19:20:28
AC	sage2012	14ms	808 KiB	C++14(O2)	201 Bytes	2025-9-20 17:21:35
AC	_chjich_	14ms	808 KiB	C++14(O2)	182 Bytes	2025-7-11 9:35:48
AC	曾彦彬contest	14ms	696 KiB	C++14(O2)	238 Bytes	2025-7-7 20:04:16
AC	w20120404	14ms	684 KiB	C++14(O2)	243 Bytes	2025-8-19 15:25:16
AC	Harry	14ms	808 KiB	C++14	266 Bytes	2025-8-21 15:28:22
AC	严晨航	14ms	808 KiB	C++14(O2)	224 Bytes	2025-8-27 16:13:39
AC	女乃龙	14ms	816 KiB	C++14(O2)	214 Bytes	2025-7-11 14:51:50
AC	若白	15ms	808 KiB	C++17(O2)	198 Bytes	2025-7-11 15:28:27
AC	maochengjun	15ms	804 KiB	C++14	214 Bytes	2025-7-9 11:46:20
AC	xzh13579	15ms	808 KiB	C++14(O2)	276 Bytes	2025-7-27 17:59:16
AC	张芷若xly2025	15ms	692 KiB	C++14(O2)	218 Bytes	2025-10-7 8:41:36
AC	王思懿	15ms	808 KiB	C++14(O2)	223 Bytes	2025-8-18 16:22:52
AC	Mch121018	15ms	808 KiB	C++17(O2)	208 Bytes	2025-9-5 21:47:54
AC	简怀墨2025xlycontest	15ms	808 KiB	C++14(O2)	202 Bytes	2025-9-21 20:33:20
AC	刘喻蔓	16ms	836 KiB	C++14(O2)	226 Bytes	2025-8-7 15:43:33
AC	龙肖瑾xly2025	16ms	816 KiB	C++14(O2)	207 Bytes	2025-7-22 21:37:26
AC	卢皓禹xly2025	16ms	804 KiB	C++14(O2)	227 Bytes	2025-10-4 14:24:05
AC	谭博文	16ms	836 KiB	C++14(O2)	227 Bytes	2025-10-7 18:15:20
AC	胡知鱼	16ms	812 KiB	C++14(O2)	216 Bytes	2025-9-19 15:58:09