Submission #421272

#	Time	Username	Problem	Language	Result	Execution time	Memory
421272		JUANDI321	Carnival Tickets (IOI20_tickets)	C++17	Compilation error	0 ms	0 KiB

tickets

#include "tickets.h"
#include <vector>
#include <iostream>
#include <algorithm>

using namespace std;

long long find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row(m);
		for (int j = 0; j < m; j++) {
			if (j < k) {
				row[j] = j;
			} else {
				row[j] = -1;
			}
		}
		answer.push_back(row);
	}
	vector<long long> l;
	long long sum = 0;
	for (int i = 0; i < n; i++)
	{ 
		l.push_back(x[i][0]);
		sum+=x[i][0];
		for (int j = 0; j < m; j++) 
			answer[i][j] = 0;
	}
	long long avg = sum/n, ans1 = 0, ans2 = 0, ans3 = 0;
	for(int i = 0; i<n; i++)ans1 += max(l[i]-avg, avg-l[i]);
	avg++;
	ans = max(ans, ans1);
	for(int i = 0; i<n; i++)ans2 += max(l[i]-avg, avg-l[i]);
	avg-;
	avg--;
	ans = max(ans, ans2);
	for(int i = 0; i<n; i++)ans3 += max(l[i]-avg, avg-l[i]);
	ans = max(ans, ans3);
	allocate_tickets(answer);
	return ans;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:35:2: error: 'ans' was not declared in this scope; did you mean 'ans3'?
   35 |  ans = max(ans, ans1);
      |  ^~~
      |  ans3
tickets.cpp:37:6: error: expected primary-expression before ';' token
   37 |  avg-;
      |      ^