제출 #1007467

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1007467		u_suck_o	카니발 티켓 (IOI20_tickets)	C++17	11 / 100	1 ms	5212 KiB

tickets

#include "tickets.h"
#include "bits/stdc++.h"
#define SZ 1505

using namespace std;

bool large[SZ][SZ], small[SZ][SZ];
int cnt[SZ];

long long find_maximum(int k, vector<vector<int>> x) {
    int n = x.size();
    int m = x[0].size();
    vector<vector<int>> answer = vector<vector<int>>(n, vector<int>(m, -1));
    
    vector<pair<int, pair<int, int>>> v; //{number, {ticket color, ticket id}}
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            v.push_back({x[i][j], {i, j}});
        }
    }
    sort(v.begin(), v.end());
    
    long long ans = 0;
    int count = 0;
    for (int i = v.size()-1; i >= 0; i--) {
        if (count == n/2 * k) break;
        if (cnt[v[i].second.first] < k) {
            ans += v[i].first;
            large[v[i].second.first][v[i].second.second] = true;
            cnt[v[i].second.first]++;
            count++;
        }
    }
    
    count = 0;
    for (int i = 0; i < v.size(); i++) {
        if (count == n/2 * k) break;
        if (cnt[v[i].second.first] < k && large[v[i].second.first][v[i].second.second] == false) {
            ans -= v[i].first;
            small[v[i].second.first][v[i].second.second] = true;
            cnt[v[i].second.first]++;
            count++;
        }
    }
    
    set<pair<int,int>> rounds;
    for (int i = 0; i < k; i++)
        rounds.insert({0, i});
    
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (small[i][j] || large[i][j]) {
                auto p = *rounds.begin();
                answer[i][j] = p.second;
                rounds.erase(rounds.begin());
                rounds.insert({p.first+1, p.second});
            }
        }
    }
    allocate_tickets(answer);
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~

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