제출 #1052838

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1052838		vjudge1	Jobs (BOI24_jobs)	C++17	11 / 100	56 ms	25936 KiB

Main

/*
بسم الله الرحمن الرحيم
Author:
                          (:Muhammad Aneeq:)
*/

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
#define int long long
int const N=3e5+10;
vector<int>nei[N]={};
int a[N];
int p[N]={};
int dfs(int u)
{
    int x=0;
    for (auto i:nei[u])
        x+=max(0ll,dfs(i));
    return a[u]+x;
}
inline void solve()
{
    int n,s;
    cin>>n>>s;
    for (int i=1;i<=n;i++)
    {
        cin>>a[i];
        cin>>p[i];
        if (p[i])
            nei[p[i]].push_back(i);
    }
    if (s==1e18)
    {
        int ans=0;
        for (int i=1;i<=n;i++)
        {
            if (p[i]==0)
                ans+=max(0ll,dfs(i));
        }
        cout<<ans<<endl;
    }
}   
signed main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
        solve();
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 14
• Subtask 3: 0 / 15
• Subtask 4: 0 / 29
• Subtask 5: 0 / 31