제출 #976680

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
976680		Izaz	사이버랜드 (APIO23_cyberland)	C++17	0 / 100	2031 ms	2097152 KiB

cyberland

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

#define f first
#define s second
#define mn(a,b) min(a,b)
#define mx(a,b) max(a,b)
#define ll long long
vector<pair<int,int>>G[int(1e5)];
double My_Num = 0;
int ok = 0 ;
void dfs(int x,int p,int h){
	if(x == h){
		ok = 1;
		return;
	}
	for(auto u : G[x]){
		if(u.f==p)continue;
		My_Num+=u.s;
		dfs(u.f,x,h);
		if(ok)return;
		My_Num-=u.s;
	}
}
double solve(int N, int M, int K, int H, std::vector<int> x, std::vector<int>
y, std::vector<int> c, std::vector<int> arr){
	for(int i = 0 ; i < M ;i++){
		G[x[i]].push_back({y[i],c[i]});
		G[y[i]].push_back({x[i],c[i]});
	}
	dfs(0,-1,H);
	return My_Num;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3