Submission #431178

#	Time	Username	Problem	Language	Result	Execution time	Memory
431178		A_D	Carnival Tickets (IOI20_tickets)	C++14	11 / 100	2 ms	588 KiB

tickets

#include "tickets.h"
#include <bits/stdc++.h>
using namespace std;
long long find_maximum(int k,vector<vector<int>>x){
    /*
    for(auto xx:x){
        for(auto y:xx){
            cout<<y<<" ";
        }
        cout<<endl;
    }
    */
	vector<vector<int>> ans;
	vector<int> vec;
	for(int i=0;i<x.size();i++){
        vec.push_back(0);
        ans.push_back(vec);
        vec.clear();
	}
	allocate_tickets(ans);
	vec.clear();
	for(int i=0;i<x.size();i++){
        vec.push_back(x[i][0]);
	}
	sort(vec.begin(),vec.end());
	int sz=vec.size();
	long long ann=0;
//	for(auto x:vec)cout<<x<<" ";cout<<endl;
	for(int i=0;i<sz/2;i++){
        ann-=vec[i];
	}
	for(int i=sz/2;i<sz;i++){
        ann+=vec[i];
	}
	return ann;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:15:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for(int i=0;i<x.size();i++){
      |              ~^~~~~~~~~
tickets.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |  for(int i=0;i<x.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