제출 #563151

#제출 시각아이디문제언어결과실행 시간메모리
563151Aktan자매 도시 (APIO20_swap)C++14
0 / 100
132 ms19248 KiB
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;

#ifndef EVAL
#include "grader.cpp"
#endif

vector<int> e[100005];
int used[100005],mx=0;
bool h=0;
void dfs(int x,int p){
	if(h==1){
		return;
	}
	used[x]++;
	if(used[x]==2){
		h=1;
		return;
	}
	for(auto w : e[x]){
		if(used[w]<1 && w!=p){
			dfs(w,x);
		}
	}
}
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W){
	for(int i=0;i<M;i++){
		e[U[i]].push_back(V[i]);
		e[V[i]].push_back(U[i]);
		mx=max(mx,W[i]);
	}
	dfs(0,-1);
}

int getMinimumFuelCapacity(int X, int Y) {
	if(h==0){
		return -1;
	}
	else{
		return mx;
	}
}
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