Submission #109503

#	Time	Username	Problem	Language	Result	Execution time	Memory
109503		pamaj	Ideal city (IOI12_city)	C++14	Compilation error	0 ms	0 KiB

city

#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 10;

int prefx[maxn], prefy[maxn];

int DistanceSum(int N, int *X, int *Y)
{
	sort(X, X + N);
	sort(Y, Y + N);

	for(int i = 0; i < N; i++)
	{
		if(!i) prefx[i] = X[i], prefy[i] = Y[i];

		else prefx[i] = X[i] + prefx[i - 1], prefy[i] = Y[i] + prefy[i - 1];
	}

	int sum = 0;

	for(int i = 0; i < n - 1; i++)
	{

		sum += prefx[n] - prefx[i] - (n - i)*X[i];

		sum += prefy[n] - prefy[i] - (n - i)*Y[i];
	}

	return sum;
}

Compilation message (stderr)

city.cpp: In function 'int DistanceSum(int, int*, int*)':
city.cpp:21:21: error: 'n' was not declared in this scope
  for(int i = 0; i < n - 1; i++)
                     ^