Submission #432192

#	Time	Username	Problem	Language	Result	Execution time	Memory
432192		Pichon5	Aliens (IOI16_aliens)	C++17	0 / 100	1 ms	204 KiB

aliens

#include "aliens.h"
#include <bits/stdc++.h>
#define pb push_back
#define F first
#define S second
#define vi vector<int>
#define ll long long
using namespace std;

long long take_photos(int n, int m, int k,vi r,vi c){
    set<pair<ll,ll> >st;
    for(int i=0;i<n;i++){
        st.insert({r[i],r[i]});
    }
    n=st.size();
    for(int i=0;i<n-k;i++){
        ll mi=1e18;
        ll ant=-100000;
        set<pair<ll,ll> > :: iterator A,B,curr;
        curr=st.begin();
        for(auto it : st){
            if(it.S-ant+1<mi){
                A=curr;
                B=st.find(it);
                mi=it.S-ant+1;
            }
            ant=it.F;
            curr=st.find(it);
        }
        ll be=(*A).F;
        ll en=(*B).S;
        st.erase(A);st.erase(B);
        st.insert({be,en});
    }
    ll res=0;
    for(auto it : st){
        ll tam=it.S-it.F+1;
        res+=tam*tam;
    }
    return res;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 40