输入正整数n，计算1~n所有奇数的和

状态	递交者	时间	内存	语言	代码	递交时间
AC	pwp	6ms	6.2 MiB	C++17(O2)	183 Bytes	2025-4-21 9:15:08
AC	友人A	51ms	10.4 MiB	Python 3	64 Bytes	2025-4-22 16:46:42
AC	abc	52ms	10.4 MiB	Python 3	44 Bytes	2025-5-6 16:47:28
AC	wxw2	54ms	10.3 MiB	Python 3	69 Bytes	2025-4-21 15:52:48
AC	tianmongda	54ms	10.4 MiB	Python 3	69 Bytes	2025-4-22 16:51:41
AC	TaoSunwei	56ms	10.4 MiB	Python 3	83 Bytes	2025-4-21 11:50:31
AC	qing	57ms	10.4 MiB	Python 3	83 Bytes	2025-4-21 11:52:34
AC	wsc	58ms	10.3 MiB	Python 3	63 Bytes	2025-5-6 17:10:20
AC	zhiqi	58ms	10.4 MiB	Python 3	70 Bytes	2025-4-22 16:52:38
AC	zhangjiangping	58ms	10.2 MiB	Python	69 Bytes	2025-4-21 15:57:11
AC	yiyinglian	59ms	10.4 MiB	Python	69 Bytes	2025-4-22 16:46:30
AC	19110836376	60ms	10.3 MiB	Python 3	86 Bytes	2025-5-6 17:02:43
AC	Urplues	70ms	10.4 MiB	Python 3	90 Bytes	2025-5-6 17:08:13