练42.2 求绝对值

状态	递交者	时间	内存	语言	代码	递交时间
AC	240101460007	26ms	532 KiB	C++17(O2)	115 Bytes	2025-5-11 9:04:52
AC	240101460059	337ms	4 MiB	Python 3	98 Bytes	2025-8-18 12:38:14
AC	240101460125	343ms	4 MiB	Python 3	49 Bytes	2025-3-16 11:31:02
AC	240101460475	343ms	4 MiB	Python 3	54 Bytes	2025-5-22 9:07:30
AC	240101460334	347ms	4.2 MiB	Python 3	45 Bytes	2025-5-10 20:11:36
AC	240101460077	347ms	4 MiB	Python 3	96 Bytes	2025-5-17 14:14:01
AC	240101460644	354ms	4 MiB	Python 3	55 Bytes	2025-9-22 18:58:59