#include "rect.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int cnt = 0;
void check(int t, int b, int l, int r, vector<vector<int>>& a) {
// cout << t << " " << b << " " << l << " " << r << "\n";
// int mn = INT_MAX;
// for (int j = l; j <= r; ++j) {
// mn = min(mn, a[b - 1][j]);
// mn = min(mn, a[t + 1][j]);
// }
// for (int i = t; i <= b; ++i) {
// mn = min(mn, a[i][l - 1]);
// mn = min(mn, a[i][r + 1]);
// }
// cout << "\n";
for (int i = t; i <= b; ++i) {
for (int j = l; j <= r; ++j) {
if (a[i][j] >= a[i][l - 1] || a[i][j] >= a[i][r + 1] || a[i][j] >= a[b + 1][j] || a[i][j] >= a[t - 1][j]) return;
}
}
// for (int i = t; i <= b; ++i) {
// for (int j = l; j <= r; ++j) {
// cout << a[i][j] << " ";
// }
// cout << "\n";
// }
// cout << "\n";
cnt++;
}
ll count_rectangles(vector<vector<int>> a) {
int n = a.size(), m = a[0].size();
for (int t = 1; t < n - 1; ++t) {
for (int l = 1; l < m - 1; ++l) {
for (int b = t; b < n - 1; ++b) {
for (int r = l; r < m - 1; ++r) {
check(t, b, l, r, a);
}
}
}
}
return cnt;
}
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