Submission #309247

#	Time	Username	Problem	Language	Result	Execution time	Memory
309247		tjdgus4384	카니발 티켓 (IOI20_tickets)	C++14	27 / 100	824 ms	70788 KiB

tickets

#include<bits/stdc++.h>
#include "tickets.h"
using namespace std;

long long find_maximum(int k, vector<vector<int> > x){
    vector<deque<pair<int, int> > > v(x.size());
    for(int i = 0;i < x.size();i++){
        for(int j = 0;j < x[i].size();j++){
            v[i].push_back({x[i][j], j});
        }
        sort(v[i].begin(), v[i].end());
    }
    vector<vector<int> > s(x.size());
    for(int i = 0;i < s.size();i++) s[i].resize(x[0].size(), -1);
    long long ret = 0;
    bool chk[1501];
    for(int k1 = 0;k1 < k;k1++){
        priority_queue<pair<int, int> > pq;
        long long sum = 0;
        for(int i = 0;i < x.size();i++){
            sum -= v[i][0].first;
            pq.push({v[i][0].first + v[i].back().first, i});
            chk[i] = false;
        }
        for(int i = 0;i < x.size()/2;i++){
            sum += pq.top().first;
            chk[pq.top().second] = true;
            pq.pop();
        }
        ret += sum;
        for(int i = 0;i < x.size();i++){
            if(chk[i]) {s[i][v[i].back().second] = k1; v[i].pop_back();}
            else {s[i][v[i][0].second] = k1; v[i].pop_front();}
        }
    }
    allocate_tickets(s);
    return ret;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:7:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i = 0;i < x.size();i++){
      |                   ~~^~~~~~~~~~
tickets.cpp:8:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |         for(int j = 0;j < x[i].size();j++){
      |                       ~~^~~~~~~~~~~~~
tickets.cpp:14:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i = 0;i < s.size();i++) s[i].resize(x[0].size(), -1);
      |                   ~~^~~~~~~~~~
tickets.cpp:20:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |         for(int i = 0;i < x.size();i++){
      |                       ~~^~~~~~~~~~
tickets.cpp:25:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for(int i = 0;i < x.size()/2;i++){
      |                       ~~^~~~~~~~~~~~
tickets.cpp:31:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for(int i = 0;i < x.size();i++){
      |                       ~~^~~~~~~~~~

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