Cod sursa(job #2283172)

Utilizator TooHappyMarchitan Teodor TooHappy Data 15 noiembrie 2018 01:39:51
Problema Stramosi Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <bits/stdc++.h>
 
using namespace std;
 
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
 
const int NMax = 250005;
const int LMax = 20;
 
int v[NMax][LMax];
 
int main(){
    int n, m, p, node;
    fin >> n >> m;
    for(int i = 1; i <= n; i++){
        fin >> v[i][0];
    }
    for(int i = 1; i < LMax; i++){
        for(int j = 1; j <= n; j++){
            v[i][j] = v[v[i - 1][j]][i - 1];
        }
    }
    for(int i = 1; i <= m; i++){
        fin >> node >> p;
        for(int i = 0; i < LMax; i++){
            if((p >> i) % 2 == 1){
                node = v[node][i];
            }
        }
        
        fout << node << "\n";
    }
    return 0;
}