제출 #615493

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
615493		Apiram	도시들 (IOI15_towns)	C++14	0 / 100	17 ms	1088 KiB

towns

#include "towns.h"
#include <bits/stdc++.h>
using namespace std;
int hubDistance(int N, int sub) {
	int root = 0;
	vector<int>dist(N);
	for (int i = 0;i<N;++i){
		if (i == root)dist[i] = 0;
		else dist[i] = getDistance(i,root);
	}
	for (int i = 0;i<N;++i){
		if (dist[i] > dist[root]){
			root = i;
		}
	}
	for (int i = 0;i<N;++i){
		if (i == root)dist[i] = 0;
		else dist[i] = getDistance(i,root);
	}
	int root2 = root;
	for (int i = 0;i<N;++i){
		if (dist[i] > dist[root2])root2 = i;
	}
	int maxxy = dist[root2];
	vector<int>dist2(N);
	for (int i = 0;i<N;++i){
		if (i == root2){
			dist2[i] = 0;
		}
		else{
			dist2[i] = getDistance(root2,i);
		}
	}
	int answer = INT_MAX;
	for (int i = 0;i<N;++i){
		if (dist[i] + dist2[i] == maxxy){
			answer = min(answer,max(dist[i],dist2[i]));
		}
	}
	return answer;
}

컴파일 시 표준 에러 (stderr) 메시지

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:4:28: warning: unused parameter 'sub' [-Wunused-parameter]
    4 | int hubDistance(int N, int sub) {
      |                        ~~~~^~~

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