#include <bits/stdc++.h>
#include "aliens.h"
#ifdef MINA
#include "grader.cpp"
#endif
using namespace std;
#define ll long long
#define sz(x) (int) x.size()
ll take_photos(int n, int crap, int m, vector<int> r, vector<int> c) {
array<ll, 2> a[n];
vector<ll> v;
for (int i = 0; i < n; i++) {
a[i] = {r[i], c[i]};
v.push_back(r[i]);
v.push_back(c[i]);
}
v.push_back(-1);
sort(v.begin(), v.end());
v.resize(unique(v.begin(), v.end()) - v.begin());
auto get = [&] (int x) {
return lower_bound(v.begin(), v.end(), x) - v.begin();
};
n = v.size() - 1;
ll mn[n + 1]{}, mx[n + 1]{};
for (int i = 0; i <= n; i++) {
mn[i] = 1e9;
mx[i] = -1e9;
}
for (int i = 0; i < sz(r); i++) {
a[i][0] = get(a[i][0]);
a[i][1] = get(a[i][1]);
mn[a[i][0]] = min(mn[a[i][0]], a[i][1]);
mx[a[i][0]] = max(mx[a[i][0]], a[i][1]);
// cout << "> " << a[i][0] << ' ' << a[i][1] << '\n';
}
ll dp[m + 1][n + 1]{};
memset(dp, '?', sizeof dp);
for (int j = 0; j <= m; j++) dp[j][0] = 0;
for (int j = 1; j <= m; j++) {
for (int i = 1; i <= n; i++) {
ll curmn = 1e9, curmx = -1e9;
for (int k = i; k >= 1; k--) {
curmn = min(curmn, mn[k]);
curmx = max(curmx, mx[k]);
// if (j == m && i == n && k == 3) {
// cout << "HI" << endl;
// }
if (k <= curmn && curmx <= i) {
dp[j][i] = min(dp[j][i], dp[j - 1][k - 1] + (v[i] - v[k] + 1) * (v[i] - v[k] + 1));
}
}
}
}
// cout << dp[1][2] << '\n';
return dp[m][n];
}
