이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "cyberland.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using node = pair<int, ll>;
vector<vector<node>> g;
set<int> st;
vector<int> used;
void dfs(int u, int p){
    if(u == p) return;
    used[u] = 1;
    for(auto [v, w]: g[u])
        if(!used[v])
            dfs(v, p);
}
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 x: arr) assert(x < 2);
    used.assign(N, 0);
    g.assign(N, vector<node>());
    vector<ll> h(N, 1e18);
    for(int i = 0; i < M; ++i){
        g[x[i]].emplace_back(y[i], c[i]);
        g[y[i]].emplace_back(x[i], c[i]);
    }
    dfs(0, H);
    priority_queue<node, vector<node>, greater<node>> b; 
    b.emplace(H, 0);
    while(!b.empty()){
        auto [u, cur] = b.top();
        b.pop();
        if(h[u] < cur) continue;
        h[u] = cur;
        for(auto [v, w]: g[u])
            b.emplace(v, cur+w);
    }
    ll ans = 1e18;
    for(int i = 0; i < N; ++i)
        if(arr[i] == 0 && used[i] == 1)
            ans = min(ans, h[i]);
    
    return (ans == 1e18 ? -1 : ans);
}
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