Submission #840913

#	Time	Username	Problem	Language	Result	Execution time	Memory
840913		study	봉쇄 시간 (IOI23_closing)	C++17	0 / 100	80 ms	17128 KiB

closing

#include "closing.h"

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

int max_score(int N, int X, int Y, long long K,
              std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
        vector<vector<pair<int,int>>> adj(N);
        for (int i=0; i<N; ++i){
                adj[U[i]].emplace_back(V[i],W[i]);
                adj[V[i]].emplace_back(U[i],W[i]);
        }
        vector<bool> vu(N);
        multiset<pair<int,int>> st;
        st.emplace(0,X);
        st.emplace(0,Y);
        vu[X] = vu[Y] = 1;
        int ans = 0;
        while (!st.empty()){
                auto [w,u] = *st.begin();
                st.erase(st.begin());
                if (K >= w){
                        K -= w;
                        ++ans;
                }
                for (auto [v,w2]:adj[u])
                        if (!vu[v]){
                                vu[v] = true;
                                st.emplace(w2,v);
                        }
        }
        return ans;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 9
• Subtask 6: 0 / 11
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 17