Submission #600498

#	Time	Username	Problem	Language	Result	Execution time	Memory
600498		UncoolAnon	Carnival Tickets (IOI20_tickets)	C++14	0 / 100	1 ms	340 KiB

tickets

#include <bits/stdc++.h> 
#define ll long long 
using namespace std; 
ll find_maximum(int k,vector<vector<int>> a){
	ll answer=0; 
	int n=a.size(),m=a[0].size(); 
	vector<int> kek ; 
	for(int i=0;i<n;++i)
		for(int j=0;j<m;j++)
			kek.push_back(a[i][j]); 
	auto vanswer=a; 
	for(auto&x:vanswer)
		for(int&y:x)
			y=0; 
	sort(kek.begin(),kek.end());
	for(int i=0;i<kek.size();i++)
		answer+=kek[i]*(kek.size()/2>i?-1:1);  
	return answer; 
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:16:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(int i=0;i<kek.size();i++)
      |              ~^~~~~~~~~~~
tickets.cpp:17:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |   answer+=kek[i]*(kek.size()/2>i?-1:1);
      |                   ~~~~~~~~~~~~^~

• 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