【入门】拿到某个数的概率是多少？

状态	递交者	时间	内存	语言	代码	递交时间
AC	taosirui	1ms	504 KiB	C++98(O2)	354 Bytes	2026-4-24 12:53:04
AC	zhongjunnan	1ms	504 KiB	C++14(O2)	252 Bytes	2026-4-21 13:54:39
AC	zhengkaiyang666	1ms	504 KiB	C++98(O2)	287 Bytes	2026-4-27 19:00:24
AC	liangluoquan	1ms	508 KiB	C++14(O2)	257 Bytes	2026-4-23 17:16:46
AC	yezihao	1ms	504 KiB	C++11(O2)	244 Bytes	2026-5-15 13:53:31
AC	zhangyi	1ms	532 KiB	C++14	183 Bytes	2026-5-21 17:04:10
AC	__XQ__	1ms	564 KiB	C++98	404 Bytes	2026-4-10 13:16:11
AC	qiujiamei	3ms	504 KiB	C++98(O2)	274 Bytes	2026-4-7 17:13:39
AC	shaojianle	3ms	504 KiB	C++98(O2)	325 Bytes	2026-3-26 17:29:42
AC	zhangxin	3ms	536 KiB	C++14(O2)	206 Bytes	2026-4-8 12:45:07
AC	heqianmo	4ms	500 KiB	C++17(O2)	275 Bytes	2026-4-7 12:39:07
AC	huangxiaoyu	5ms	504 KiB	C++98	238 Bytes	2026-3-26 20:50:28