加一个条件写成三个
```c
for(int i=0;i<=n;i++)
for(int j=0;j<=m;j++)
if(i==0&&j==0||blo[i][j])
{
continue;
}
if(i>0&&f[i-1][j]>0)
{
f[i][j]=f[i][j]+f[i-1][j];
}
if(j>0&&f[i][j-1]>0)
{
f[i][j]=f[i][j]+f[i][j-1];
}
```
by Linkaifan1227 @ 2024-03-15 22:51:50
请关注,谢谢!
by Linkaifan1227 @ 2024-03-15 22:54:27