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Submission #109516

# Submission time Handle Problem Language Result Execution time Memory
109516 2019-05-06T18:51:29 Z pamaj Ideal city (IOI12_city) C++14
0 / 100
 11 ms 1152 KB 
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 10;

typedef long long ll;

ll prefx[maxn], prefy[maxn];

int DistanceSum(int N, int *X, int *Y)
{
	ll x[maxn];
	ll y[maxn];

	for(int i = 0; i < N; i++)
	{
		x[i] = X[i];
		y[i] = Y[i];
	}

	sort(x, x + N);
	sort(y, y + N);

	for(int i = 0; i < N; i++)
	{
		if(i == 0) prefx[i] = x[i], prefy[i] = y[i];

		else prefx[i] = x[i] + prefx[i - 1], prefy[i] = y[i] + prefy[i - 1];

		
		//cout << prefx[i] << " " << prefy[i] << "\n";
	}

	ll sum = 0;

	for(int i = 0; i < N - 1; i++)
	{
		sum += prefx[N - 1] - prefx[i] - (N - i)*x[i];

		sum += prefy[N - 1] - prefy[i] - (N - i)*y[i];
	}


	return sum;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 1152 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 1152 KB Output isn't correct
2 Halted 0 ms 0 KB -