练45.1 计算2的幂

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	QQQ	201ms	4 MiB	Python 3	30 Bytes	2025-5-12 17:47:15
AC	林霈鋒	202ms	4 MiB	Python 3	28 Bytes	2025-5-12 17:10:34
AC	patricklai7528	203ms	4 MiB	Python 3	30 Bytes	2025-5-12 14:26:35
AC	宇軒	203ms	4 MiB	Python 3	22 Bytes	2025-5-12 17:17:13