Hack:
```cpp
1
1
```
您的代码输出:0,正确输出:1。
by metaphysis @ 2021-03-31 16:25:37
把
for(i=0;i<N;i++)
改成
for(i=0;i<=N;i++)试试
by 20100202w @ 2021-11-30 21:03:32
@[xujiulsr](/user/487742)
by 20100202w @ 2021-12-05 20:16:47