oj.uz

Submission #129539

# Submission time Handle Problem Language Result Execution time Memory
129539 2019-07-12T13:05:53 Z johutha Towns (IOI15_towns) C++14
25 / 100
 21 ms 1016 KB 
#include "towns.h"
#include <vector>
#include <iostream>
#include <algorithm>

using namespace std;

int hubDistance(int n, int sub) {
	int mmax = -1;
	int diabeg = -1;
	for (int i = 1; i < n; i++)
	{
		int q = getDistance(0, i);
		if (q > mmax)
		{
			mmax = q;
			diabeg = i;
		}
	}
	vector<int> fbeg(n);
	int diaend = -1;
	mmax = -1;
	for (int i = 0; i < n; i++)
	{
		if (i == diabeg) continue;
		fbeg[i] = getDistance(diabeg, i);
		if (fbeg[i] > mmax)
		{
			mmax = fbeg[i];
			diaend = i;
		}
	}
	vector<int> fend(n);
	fend[diabeg] = fbeg[diaend];
	for (int i = 0; i < n; i++)
	{
		if (i == diabeg || i == diaend) continue;
		fend[i] = getDistance(diaend, i);
	}

	int r = 100000000;
	int dia = fbeg[diaend];

	for (int i = 0; i < n; i++)
	{
		int diff = abs(fbeg[i] - fend[i]);
		r = min(r, (dia + diff)/2);
	}
	return r;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:8:28: warning: unused parameter 'sub' [-Wunused-parameter]
 int hubDistance(int n, int sub) {
                            ^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 900 KB Output is correct
2 Correct 16 ms 764 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 21 ms 888 KB Output is correct
5 Correct 21 ms 888 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1016 KB Output is correct
2 Correct 16 ms 760 KB Output is correct
3 Correct 21 ms 888 KB Output is correct
4 Correct 21 ms 888 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 760 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 1016 KB Output isn't correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 600 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 632 KB Output isn't correct
2 Halted 0 ms 0 KB -