【入门】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	liuhaoran	2ms	512 KiB	C++14	212 Bytes	2026-3-25 13:07:36
AC	zhengkaiyang666	2ms	536 KiB	C++14(O2)	250 Bytes	2026-3-24 16:59:18
AC	chenaijin	2ms	504 KiB	C++14	246 Bytes	2026-3-24 17:54:17
AC	wengzhaoyu8	2ms	504 KiB	C++14	231 Bytes	2026-3-24 17:21:02
AC	zhangxin	2ms	452 KiB	C++14(O2)	184 Bytes	2026-3-27 13:11:16
AC	yuziqian	2ms	344 KiB	C++98	203 Bytes	2026-3-24 17:28:25
AC	linener	3ms	532 KiB	C++17(O2)	188 Bytes	2026-4-1 12:30:23
AC	liangluoquan	3ms	504 KiB	C++14(O2)	183 Bytes	2026-4-7 17:04:38
AC	chenyishen	4ms	504 KiB	C++98(O2)	195 Bytes	2026-4-7 17:45:59