oj.uz

Submission #167465

# Submission time Handle Problem Language Result Execution time Memory
167465 2019-12-08T15:52:19 Z faremy Towns (IOI15_towns) C++14
25 / 100
 27 ms 1172 KB 
#include "towns.h"

#include <algorithm>
#include <iostream>


const int MAXN = 110;

int distToEnd[MAXN];


int hubDistance(int N, int sub)
{
	int farthest = 0, end = 0;
	for (int iNode = 0; iNode < N; iNode++)
	{
		int dist = getDistance(0, iNode);
		if (dist > farthest)
		{
			farthest = dist;
			end = iNode;
		}
	}

	int diameter = 0, otherEnd = end;
	for (int iNode = 0; iNode < N; iNode++)
	{
		distToEnd[iNode] = getDistance(end, iNode);
		if (distToEnd[iNode] > diameter)
		{
			diameter = distToEnd[iNode];
			otherEnd = iNode;
		}
	}

	int minMaxDist = diameter;
	for (int iNode = 0; iNode < N; iNode++)
	{
		int distToOth = getDistance(iNode, otherEnd);
		int half = (diameter + distToEnd[iNode] - distToOth) / 2;
		minMaxDist = std::min(minMaxDist, std::max(half, diameter - half));
	}

	return minMaxDist;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:12:28: 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 1016 KB Output is correct
2 Correct 17 ms 760 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 21 ms 1016 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 896 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 764 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 1172 KB Output isn't correct

Subtask #5
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 #6
0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 27 ms 948 KB Output isn't correct
2 Halted 0 ms 0 KB -