Submission #1065124

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065124		vjudge1	Closing Time (IOI23_closing)	C++17	8 / 100	85 ms	34944 KiB

closing

#include "closing.h"
#include<bits/stdc++.h>
using namespace std;
vector<pair<int,int>>adj[200100];
vector<long long>v;
void dfs(int n,int p,long long d){
    v.push_back(d);
    for(auto[i,w]:adj[n])
        if(i-p)dfs(i,n,d+w);
}
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-1;i++)
        adj[U[i]].push_back({V[i],W[i]}),
        adj[V[i]].push_back({U[i],W[i]});
    v.clear();
    dfs(X,N,0);
    dfs(Y,N,0);
    sort(v.rbegin(),v.rend());
    while(v.size())
        if(v.back()<=K)
            K-=v.back(),
            v.pop_back();
        else break;
    for(int i=0;i<N;i++)
        adj[i].clear();
    return 2*N-v.size();
}

• Subtask 0: 0 / 0
• Subtask 1: 8 / 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