#include "seats.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define vi vector<int>
#define vp32 vector<p32>
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define MOD %1000000007
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <class T>
using Tree =
tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//never guess
//never debug without reviewing code
//never try adding ones or substracting them
//only step by step debug when necessay
namespace potato{
int H,W; vi R,C;
}
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
potato::H = H, potato::W = W, potato::R = R, potato::C = C;
}
int swap_seats(int a, int b) {
using namespace potato;
swap(R[a],R[b]); swap(C[a],C[b]);
int rmin = R[0], rmax = R[0], cmin = C[0], cmax = C[0];
int res = 1;
for (size_t i = 1; i < H*W; i++)
{
rmin = min(rmin,R[i]); rmax = max(rmax,R[i]);
cmin = min(cmin,C[i]); cmax = max(cmax,C[i]);
if(i+1==(rmax-rmin+1)*(cmax-cmin+1)) res++;
}
return res;
}
// int main(int argc, char const *argv[])
// {
// give_initial_chart(1,1,{0},{0});
// return 0;
// }
