【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	202522091	1ms	372 KiB	C++ 98	288 Bytes	2022-12-26 8:50:06
AC	wsh	2ms	352 KiB	C++ 98	288 Bytes	2023-3-4 9:41:40
AC	Davidkroos	2ms	352 KiB	C++	236 Bytes	2022-9-17 21:34:40
AC	202522184	2ms	504 KiB	C++ 98	288 Bytes	2022-12-14 11:33:37
AC	202530384	2ms	408 KiB	C++ 11	387 Bytes	2023-3-19 20:59:27
AC	13637975001	2ms	376 KiB	C++ 11	247 Bytes	2024-7-27 20:35:59
AC	wsh	2ms	376 KiB	C++ 98	288 Bytes	2023-2-28 18:46:00
AC	13368253581	3ms	424 KiB	C++ 98	288 Bytes	2022-11-6 8:27:11
AC	13452000173	3ms	376 KiB	C++ 98	288 Bytes	2023-3-20 18:59:07
AC	202522249	3ms	412 KiB	C++ 11	288 Bytes	2022-11-30 8:10:27