@[happyyu](/user/742255) \
1别发题目总版\
2用scanf或快读,别用没有优化的输入和输出
by zyh0516_lucky @ 2023-12-19 17:29:11
@[happyyu](/user/742255)
另外关于进一步的优化,可以学习位运算
by zyh0516_lucky @ 2023-12-19 17:30:07