제출 #1163772

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1163772		vladilius	Jobs (BOI24_jobs)	C++20	11 / 100	81 ms	32580 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
#define pb push_back
#define ff first
#define ss second

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n; ll s; cin>>n>>s;
    vector<int> g[n + 1], a(n + 1), p(n + 1);
    for (int i = 1; i <= n; i++){
        cin>>a[i]>>p[i];
        g[p[i]].pb(i);
    }
    
    vector<ll> dp(n + 1);
    function<void(int, int)> dfs = [&](int v, int pr){
        dp[v] = a[v];
        for (int i: g[v]){
            if (i == pr) continue;
            dfs(i, v);
            dp[v] += dp[i];
        }
        dp[v] = max(dp[v], 0LL);
    };
    dfs(0, 0);
    
    cout<<dp[0]<<"\n";
}

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