제출 #1006797

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1006797		Haidara314	봉쇄 시간 (IOI23_closing)	C++17	0 / 100	59 ms	20320 KiB

closing

#include "closing.h"

#include <bits/stdc++.h>
#define S second
#define F first
using namespace std;
vector<pair<int,long long>>adj[200005];
bool vis[200005];
int max_score(int N, int X, int Y, long long K,
              std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
    for(int i=0;i<N;i++){adj[i].clear();vis[i]=0;}
    for(int i=0;i<N-1;i++)
    {
        adj[U[i]].push_back({V[i],W[i]});
        adj[V[i]].push_back({U[i],W[i]});
    }
    int ans=0;
    int f=0;
    priority_queue<pair<int,int>>pq;
    pq.push({0,X});
    pq.push({0,Y});
    while(!pq.empty())
    {
        int c=(pq.top()).S;
        long long y=-((pq.top()).F);
        pq.pop();
        if(vis[c])continue;
        vis[c]=1;
        if(K!=0)f=K;
        if(y<=K)
        {
            K-=y;
            ans++;
        for(auto u:adj[c])
        {
            pq.push({-u.S,u.F});
        }
        }
    }
    return f;
}
/*
1
7 0 2 10
 0 0 1 2 2 5
 1 3 2 4 5 6
 2 3 4 2 5 3
*/
/*
1
4 0 3 20
0 1 2
1 2 3
18 1 19
*/

• Subtask 0: 0 / 0
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• Subtask 2: 0 / 9
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• Subtask 4: 0 / 14
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• Subtask 9: 0 / 17