Submission #557682

#	Time	Username	Problem	Language	Result	Execution time	Memory
557682		sidon	Towns (IOI15_towns)	C++17	25 / 100	19 ms	380 KiB

towns

#include <bits/stdc++.h>
#include "towns.h"
using namespace std;

int hubDistance(int N, int _) {
	int d[N][N] {}, x {};
	for(int i = 1; i < N; ++i)
		if((d[0][i] = getDistance(0, i)) > d[0][x])
			x = i;
	int y = x;
	for(int i = 0; i < N; ++i)
		if((d[x][i] = getDistance(x, i)) > d[x][y])
			y = i;

	int R = 1e6;
	for(int i = 0; i < N; ++i) {
		int c = (d[x][i] - d[0][i] + d[0][x]) / 2;
		R = min(R, max(c, d[x][y] - c));
	}

	return R;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:5:28: warning: unused parameter '_' [-Wunused-parameter]
    5 | int hubDistance(int N, int _) {
      |                        ~~~~^

• Subtask 1: 13 / 13
• Subtask 2: 12 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 39