求出1~n中满足条件的数的个数和总和？

状态	递交者	时间	内存	语言	代码	递交时间
AC	zhangyisi	3ms	504 KiB	C++14(O2)	250 Bytes	2025-11-25 17:47:40
AC	chenjunfeng	4ms	504 KiB	C++14(O2)	212 Bytes	2025-9-20 15:50:26
AC	Ytest	4ms	504 KiB	C++14(O2)	261 Bytes	2025-9-6 16:15:49
AC	luzhuofan	4ms	504 KiB	C++14(O2)	196 Bytes	2025-10-2 14:25:08
AC	yanghejing	4ms	532 KiB	C++14(O2)	214 Bytes	2025-10-2 9:30:20
AC	chenqianyu	4ms	504 KiB	C++14(O2)	238 Bytes	2026-1-5 17:56:04
AC	liangluoquan	4ms	504 KiB	C++14(O2)	213 Bytes	2025-10-20 13:50:46
AC	liweiwei	4ms	544 KiB	C++14(O2)	212 Bytes	2025-10-12 16:55:16
AC	yejuntao	4ms	488 KiB	C++14(O2)	188 Bytes	2025-10-2 11:22:22
AC	jiangxiangtong	4ms	504 KiB	C++14(O2)	212 Bytes	2025-9-20 15:52:40
AC	liwenxin	4ms	532 KiB	C++14(O2)	224 Bytes	2025-9-20 15:51:34