Submission #382695

#	Time	Username	Problem	Language	Result	Execution time	Memory
382695		MatheusLealV	Towns (IOI15_towns)	C++17	25 / 100	28 ms	1260 KiB

towns

#include "towns.h"
#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
typedef pair<int, int> pii;
int n;
int dist[500][500];
int hubDistance(int nn, int sub) {
	n = nn;

	pii maior = {-1,-1};
	for(int i = 1; i < n; i++){
		dist[0][i] = getDistance(0, i);
		maior=max(maior, {dist[0][i], i});
	}
	pii maior2 ={-1,-1};
	for(int i = 0; i < n; i++){
		dist[maior.s][i] = getDistance(maior.s, i);
		maior2 = max(maior2, {dist[maior.s][i], i});
	}
	for(int i = 0; i < n; i++){
		dist[maior2.s][i] = getDistance(maior2.s, i);
	}
	int diametro = maior2.f, R = (int)1e9;
	for(int i = 0; i < n; i++){
		int x1 = dist[maior.s][i], x2 = dist[maior2.s][i];
		//x1-d1 = x2-d2   ->d1-d2 = x1-x2
		//d1+d2=diametro  - >2*d1 = x1-x2+diametro
		int d1 = (x1-x2+diametro)/2;
		int d2 = diametro-d1;
		R=min(R, max(d1,d2));
	}
	return R;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:9:29: warning: unused parameter 'sub' [-Wunused-parameter]
    9 | int hubDistance(int nn, int sub) {
      |                         ~~~~^~~

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