~~竟然没有人抢前排~~前排兜售烤绿鸟
by little_cindy @ 2021-01-29 13:38:15
```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
bool b[110][110];
long long a[110][110];
memset(b,0,sizeof(b));
short dx[8]={2,1,-1,-2,-2,-1,1,2};
short dy[8]={1,2,2,1,-1,-2,-2,-1};
int n,m,x,y;
cin>>n>>m>>x>>y;
b[x][y]=1;
for(int i=0;i<=7;i++)
{
if(x+dx[i]>=0&&y+dy[i]>=0&&x+dx[i]<=n&&y+dy[i]<=m)b[x+dx[i]][y+dy[i]]=1;
}
int k=0;
while(!b[k][0]&&k<=n)a[k++][0]=1;
int l=0;
while(!b[0][l]&&l<=m)a[0][l++]=1;
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)
if(b[i][j])a[i][j]=0;
else a[i][j]=a[i-1][j]+a[i][j-1];
cout<<a[n][m];
return 0;
}
```
可以参考
by Zelin990 @ 2021-01-29 14:04:05
俗话说:10年OI一场空,不开ll见祖宗
by _caiji_ @ 2021-01-29 15:38:25
左边界和上边界标1的时候错了。你得判断马的落点是不是在边界上。另外如果在边界上你还得终止循环,不能把剩下的标1.
by Gypsy @ 2021-02-21 03:58:10
@[Gypsy](/user/411278) 谢谢
by KAWorld @ 2021-02-25 08:10:47