#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll count_rectangles(vector<vector<int>> a){
ll res = 0;
int n = a.size(), m = a[0].size();
for (int t=1; t<n-1; t++){
for (int b=t; b<n-1; b++){
for (int l=1; l<m-1; l++){
for (int r=l; r<m-1; r++){
bool valid = true;
for (int x=t; x<=b; x++){
for (int y=l; y<=r; y++){
if (min(min(a[t-1][y], a[b+1][y]), min(a[x][l-1], a[x][r+1])) <= a[x][y]) valid = false;
}
}
if (valid) res++;
}
}
}
}
return res;
}
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