이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
#include "aliens.h"
ll d[550][1010],i,j,b[1010],te,N,me[1010][1010];
pair<ll,ll> a[1010];
ll inter(ll aa,ll bb)
{
if(bb==N+1)
return 0;
if(a[aa].se<a[bb].fi||a[aa]==a[bb])
return 0;
return (a[bb].fi-a[aa].se-1)*(a[bb].fi-a[aa].se-1);
}
ll depe(ll aa,ll bb)
{
if(aa==N+1)
return 0;
if(bb<=0)
return 1e18;
if(d[aa][bb]==-1)
{
d[aa][bb]=1e18;
ll ii;
for(ii=aa;ii<=N;ii++)
d[aa][bb]=min(d[aa][bb],depe(ii+1,bb-1)+(a[ii].se-a[aa].fi+1)*(a[ii].se-a[aa].fi+1)-inter(ii,ii+1));
}
return d[aa][bb];
}
long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) {
for(i=0;i<n;i++)
for(j=0;j<n;j++)
{
ll Ki=min(r[i],c[i]);
ll Ka=max(r[i],c[i]);
if(Ki==min(r[j],c[j])&&Ka==max(r[j],c[j]))
continue;
if(i==j)
continue;
if(Ki<r[j]&&r[j]<Ka&&Ki<c[j]&&c[j]<Ka)
b[j]=1;
}
for(i=0;i<n;i++)
if(!b[i]&&me[min(c[i],r[i])][max(r[i],c[i])]==0)
{
te++;
a[te]=mp(min(r[i],c[i]),max(r[i],c[i]));
me[min(c[i],r[i])][max(r[i],c[i])]=1;
}
memset(d,-1,sizeof(d));
N=te;
sort(a+1,a+1+N);
for(i=1;i<N;i++)
if(a[i].se>a[i+1].se)
while(1);
// for(i=1;i<=N;i++)
// cout<<a[i].fi<<" "<<a[i].se<<"\n";
// cout<<N<<"\n";
return depe(1,k);
}
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