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	shiyunfei	5ms	1.9 MiB	C++	261 Bytes	2021-12-19 10:25:10
AC	hezhuojie	5ms	1.9 MiB	C++	272 Bytes	2021-11-28 18:05:30
AC	zhouyongxin	5ms	1.9 MiB	C++	256 Bytes	2021-11-28 18:22:56
AC	zhangqiansheng	5ms	2 MiB	C++	237 Bytes	2021-12-21 20:58:46
AC	wenyuanhao	5ms	2 MiB	C++	233 Bytes	2022-1-1 17:49:50
AC	liuhaozhen	5ms	1.9 MiB	C++	260 Bytes	2022-1-2 13:36:02
AC	liubofan	5ms	1.4 MiB	C++	282 Bytes	2022-4-10 9:24:02
AC	wangjingyuan	5ms	2.1 MiB	C++	265 Bytes	2023-8-9 20:59:32
AC	liaoyonglin	5ms	2.1 MiB	C++	292 Bytes	2024-3-16 10:50:52
AC	xmahaotao	5ms	2.1 MiB	C++	230 Bytes	2024-11-30 23:33:12
AC	chenziyu	6ms	2 MiB	C++	214 Bytes	2021-12-19 10:12:00
AC	luosheliu	6ms	2 MiB	C++	325 Bytes	2021-12-31 20:46:09
AC	limuen	7ms	2.1 MiB	C++	320 Bytes	2023-8-22 12:30:29