48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#include <cstdio>
|
|
#include <cmath>
|
|
#include <cstring>
|
|
#include <iostream>
|
|
#include <algorithm>
|
|
using namespace std;
|
|
const int maxn=303;
|
|
int sum[maxn][maxn],e[maxn][maxn];
|
|
int find(int n,int m)
|
|
{
|
|
int i,j,k,ans=0,t=0,p,q;
|
|
if(e[n][m]==0)return 0;
|
|
for(i=n-1,j=m-1;i>=1&&j>=1;i--,j--,t++)
|
|
{
|
|
if(!e[i][m]||!e[n][j])return ans;
|
|
for(p=i,q=j;p<n;p++,q++)
|
|
if(!e[i][q]||!e[p][j])break;
|
|
if(p<n)continue;
|
|
p=sum[n-1][m-1]-sum[i][m-1]-sum[n-1][j]+sum[i][j];
|
|
if(abs(t*t-2*p)<=1)ans++;
|
|
}
|
|
return ans;
|
|
}
|
|
int main()
|
|
{
|
|
int T;
|
|
scanf("%d",&T);
|
|
while(T--)
|
|
{
|
|
int i,j,k,n,m,ans=0;
|
|
scanf("%d%d",&n,&m);
|
|
memset(sum,0,sizeof(sum));
|
|
for(i=1;i<=n;i++)
|
|
{
|
|
for(j=1;j<=m;j++)
|
|
{
|
|
scanf("%d",&e[i][j]);
|
|
sum[i][j]=sum[i-1][j]+sum[i][j-1]-sum[i-1][j-1]+e[i][j];
|
|
}
|
|
}
|
|
for(i=2;i<=n;i++)
|
|
for(j=2;j<=m;j++)
|
|
ans+=find(i,j);
|
|
printf("%d\n",ans);
|
|
}
|
|
return 0;
|
|
}
|