```cpp
#include<bits/stdc++.h>
using namespace std;
int chess[35][35],n;
int main() {
int sign=1;
scanf("%d",&n);
for(int i=1; i<=n; i++) for(int j=1; j<=n; j++) {
scanf("%d",&chess[i][j]);
if(!chess[i][j]){
if(chess[i-1][j]) chess[i][j]=2;
}
}
printf("\n");
for(int i=1;i<=n;i++) {for(int j=1;j<=n;j++) printf("%d ",chess[i][j]); printf("\n");}
return 0;
}
```
by waterlike @ 2017-12-28 19:10:44
我这都40。。。
by waterlike @ 2017-12-28 19:11:08