【例16.1】判断数正负

状态	递交者	时间	内存	语言	代码	递交时间
AC	UID 298	23ms	544 KiB	C++20(O2)	186 Bytes	2026-7-22 16:32:40
AC	UID 97	25ms	508 KiB	C++98	237 Bytes	2025-11-5 13:38:02
AC	UID 301	25ms	520 KiB	C++20(O2)	179 Bytes	2026-8-11 9:41:22
AC	李屹则	26ms	504 KiB	C++98	260 Bytes	2025-12-4 7:11:26
AC	UID 24	26ms	768 KiB	C++20(O2)	194 Bytes	2026-7-22 16:29:51
AC	UID 96	26ms	764 KiB	C++98	202 Bytes	2025-11-5 13:38:52
AC	许铖晟	26ms	524 KiB	C++98	382 Bytes	2025-7-15 17:47:56
AC	UID 81	26ms	532 KiB	C++98	215 Bytes	2025-11-5 13:37:43
AC	UID 84	27ms	760 KiB	C++98	215 Bytes	2025-11-5 13:22:36
AC	UID 75	27ms	508 KiB	C++98	201 Bytes	2025-11-5 12:58:20
AC	UID 79	27ms	760 KiB	C++98	202 Bytes	2025-11-5 13:36:20
AC	wyh	27ms	516 KiB	C++98	193 Bytes	2025-7-14 17:39:17