Submission #625765

#	Time	Username	Problem	Language	Result	Execution time	Memory
625765		1ne	Carnival Tickets (IOI20_tickets)	C++14	Compilation error	0 ms	0 KiB

tickets

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

long long find_maximum(int k, std::vector<std::vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	vector<int>pos;
	for (int i = 0;i<n;++i){
		for (int j = 0;j<m;++j){
			sum+=x[i][j];
			pos.push_back(x[i][j]);
			x[i][j] = 0;
		}
	}
	sort(pos.begin(),pos.end());
	vector<int>valid = {pos[n/2],pos[n/2 - 1],sum / n,sum / n  + 1,sum / n - 1};
	long long ans = LLONG_MAX;
	for (auto x:valid){
		long long curans = 0;
		for (auto y:pos){
			curans+=abs(y - x);
		}
		ans = min(ans,curans);
	}
	for (int i = 0;i<n;++i){
		for (int j = 0;j<m;++j){
			x[i][j] = 0;
		}
	}
	allocate_tickets(x);
	return ans;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:12:4: error: 'sum' was not declared in this scope
   12 |    sum+=x[i][j];
      |    ^~~
tickets.cpp:18:44: error: 'sum' was not declared in this scope
   18 |  vector<int>valid = {pos[n/2],pos[n/2 - 1],sum / n,sum / n  + 1,sum / n - 1};
      |                                            ^~~
tickets.cpp:18:76: error: could not convert '{pos.std::vector<int>::operator[](((std::vector<int>::size_type)(n / 2))), pos.std::vector<int>::operator[](((std::vector<int>::size_type)((n / 2) - 1))), <expression error>, <expression error>, <expression error>}' from '<brace-enclosed initializer list>' to 'std::vector<int>'
   18 |  vector<int>valid = {pos[n/2],pos[n/2 - 1],sum / n,sum / n  + 1,sum / n - 1};
      |                                                                            ^
      |                                                                            |
      |                                                                            <brace-enclosed initializer list>