제출 #430616

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
430616		MeGustaElArroz23	카니발 티켓 (IOI20_tickets)	C++14	25 / 100	838 ms	82092 KiB

tickets

/////////////////

#include "tickets.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
typedef vector<pii> vii;

bool casobinario(vvi v){
    for (vi w:v){
        for (int x:w){
            if (x>1) return 0;
        }
    }
    return 1;
}

long long find_maximum(int k, std::vector<std::vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
    if (m==1){
        allocate_tickets(vvi(n,vi(1,0)));
        vi v;
        for (int i=0;i<n;i++) v.push_back(x[i][0]);
        sort(v.begin(),v.end());
        ll sol=0;
        for (int x:v) sol+=abs(v[n/2]-x);
        return sol;
    }
    else if (casobinario(x)){
        vvi unos(n);
        vvi ceros(n);
        for (int i=0;i<n;i++){
            for (int j=0;j<m;j++){
                if (x[i][j]) unos[i].push_back(j);
                else ceros[i].push_back(j);
            }
        }
        set<pii> cantidad;
        for (int i=0;i<n;i++) cantidad.insert(pii{unos[i].size(),i});
        vvi res(n,vi(m,-1));
        vvi cadadia(k);
        for (int dia=0;dia<k;dia++){
            auto a=cantidad.begin();
            vii restar;
            for (int i=0;i<n/2;i++){
                int ac=(*a).second;
                if (ceros[ac].size()){
                    res[ac][ceros[ac][ceros[ac].size()-1]]=dia;
                    ceros[ac].pop_back();
                    cadadia[dia].push_back(0);
                }
                else{
                    res[ac][unos[ac][unos[ac].size()-1]]=dia;
                    unos[ac].pop_back();
                    restar.push_back((*a));
                    cadadia[dia].push_back(1);
                }
                a++;
            }
            for (int i=0;i<n/2;i++){
                int ac=(*a).second;
                if (unos[ac].size()){
                    res[ac][unos[ac][unos[ac].size()-1]]=dia;
                    unos[ac].pop_back();
                    restar.push_back((*a));
                    cadadia[dia].push_back(1);
                }
                else{
                    res[ac][ceros[ac][ceros[ac].size()-1]]=dia;
                    ceros[ac].pop_back();
                    cadadia[dia].push_back(0);
                }
                a++;
            }
            for (pii x:restar){
                cantidad.erase(x);
                cantidad.insert(pii{x.first-1,x.second});
            }
        }
        allocate_tickets(res);
        
        ll sol=0;
        for (vi v:cadadia){
            sort(v.begin(),v.end());
            for (int x:v) sol+=abs(v[n/2]-x);
        }
        return sol;
    }
	return 1;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 16
• Subtask 3: 14 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10