#include "seats.h"
#include <bits/stdc++.h>
using namespace std;
int h, w; vector<int> r, c;
void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
h = H; w = W;
r = R; c = C;
}
int swap_seats(int a, int b) {
swap(r[a], r[b]); swap(c[a], c[b]);
int rmin = INT_MAX, rmax = 0, cmin = INT_MAX, cmax = 0, ans = 0;
for (int i = 0; i < h*w; i++) {
rmin = min(rmin, r[i]); rmax = max(rmax, r[i]);
cmin = min(cmin, c[i]); cmax = max(cmax, c[i]);
ans += ((rmax-rmin+1) * (cmax-cmin+1) == i+1);
}
return ans;
}
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