#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int,int> pii;
vector<ll>dp[100001];
const ll INF = 1e18;
long long take_photos(int m, int n, int k, vector<int> r, vector<int> c) {
vector<int>h(n+1,n+1);
for(int i=0;i<m;i++){
int a = max(r[i],c[i]);
int b = min(r[i],c[i]);
h[a] = min(h[a],b);
}
vector<int>b = {0};
for(int i=1;i<=n;i++){
if(h[i]!=n+1)b.push_back(i);
}
n = b.size()-1;
for(int i=0;i<=n;i++){
dp[i].assign(k+1,INF);
}
dp[0][0] = 0;
for(int i=1;i<=n;i++){
int mn = h[b[i]];
for(int j=i-1;j>=0;j--){
for(int l=1;l<=k;l++){
if(dp[j][l-1] != INF){
ll len = b[i] - mn+1;
len*=len;
dp[i][l] = min(dp[i][l],dp[j][l-1] + len);
}
}
mn = min(mn,h[b[j]]);
}
}
ll ans = INF;
for(int i=1;i<=k;i++)ans = min(ans,dp[n][i]);
return ans;
}
