Cod sursa(job #1983958)

Utilizator Dragne.Andrei11Dragne Andrei Dragne.Andrei11 Data 22 mai 2017 23:17:29
Problema Stramosi Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.71 kb
#include <bits/stdc++.h>

using namespace std;

vector <int> t;
vector <int> depth;

int stramos(int p, int q)
{
    while(q){
        p=t[p];
        q--;
    }
    return p;
}

int main()
{
    freopen("stramosi.in", "r", stdin);
    freopen("stramosi.out", "w", stdout);
    int n, m;

    scanf("%d%d", &n, &m);
    t.push_back(0);
    depth.push_back(0);
    for(int i=1;i<=n;i++){
        int nr;
        cin>>nr;
        t.push_back(nr);
        depth.push_back(depth[nr]+1);
    }
    for(int i=1;i<=m;i++){
        int p, q;
        cin>>p>>q;
        if(depth[p]-q<=0)
            cout<<"0"<<'\n';
        else
            cout<<stramos(p, q)<<'\n';
    }

    return 0;
}