Submission #309262

#	Time	Username	Problem	Language	Result	Execution time	Memory
309262		tjdgus4384	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	4 ms	896 KiB

tickets

#include<bits/stdc++.h>
#include "tickets.h"
using namespace std;
int chk[1501][1501];

long long find_maximum(int k, vector<vector<int> > x){
    vector<pair<pair<string, int>, pair<int, int> > > v;
    vector<pair<int, int> > newv;
    for(int i = 0;i < x.size();i++){
        string str;
        str.resize(x[i].size());
        newv.clear();
        for(int j = 0;j < x[i].size();j++){
            newv.push_back({x[i][j], j});
        }
        sort(newv.begin(), newv.end());
        for(int j = 0;j < newv.size();j++){
            chk[i][j] = newv[j].second;
            str[j] = newv[j].first;
        }
        v.push_back({{str, i},{0, str.size()-1}});
    }
    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;
    for(int k1 = 0;k1 < k;k1++){
        sort(v.begin(), v.end());
        for(int i = 0;i < x.size()/2;i++){
            string str = v[i].first.first;
            s[v[i].first.second][chk[v[i].first.second][v[i].second.first]] = k1;
            if(k1 < k - 1) v[i].first.first = str.substr(1, str.size()-1);
            v[i].second.first++;
            ret -= str[0];
        }
        for(int i = x.size()/2;i < x.size();i++){
            string str = v[i].first.first;
            s[v[i].first.second][chk[v[i].first.second][v[i].second.second]] = k1;
            if(k1 < k - 1) v[i].first.first = str.substr(0, str.size()-2);
            v[i].second.second--;
            ret += str[str.size()-1];
        }
    }
    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:9:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i = 0;i < x.size();i++){
      |                   ~~^~~~~~~~~~
tickets.cpp:13:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         for(int j = 0;j < x[i].size();j++){
      |                       ~~^~~~~~~~~~~~~
tickets.cpp:17:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         for(int j = 0;j < newv.size();j++){
      |                       ~~^~~~~~~~~~~~~
tickets.cpp:24:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i = 0;i < s.size();i++) s[i].resize(x[0].size(), -1);
      |                   ~~^~~~~~~~~~
tickets.cpp:28:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int i = 0;i < x.size()/2;i++){
      |                       ~~^~~~~~~~~~~~
tickets.cpp:35:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for(int i = x.size()/2;i < x.size();i++){
      |                                ~~^~~~~~~~~~

• Subtask 1: 0 / 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