Cod sursa(job #1689739)

Utilizator VladTiberiuMihailescu Vlad Tiberiu VladTiberiu Data 14 aprilie 2016 15:35:17
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.64 kb
#include <bits/stdc++.h>

#define NMax 250005
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");

int n,m,p,q,ANS;
int tata[NMax];
int a[30][NMax];

int main()
{
    f >> n >> m;
    for(int i = 1; i <= n; ++i){
        f >> a[0][i];
    }
    for(int i = 1; (1<<i) <= n; ++i){
        for(int j = 1; j <= n; ++j){
            a[i][j] = a[i - 1][a[i - 1][j]];
        }
    }
    for(int i = 1; i <= m; ++i){
        f >> p >> q;
        for(int j = 0; (1<<j) <= n; ++j){
            if((1<<j) & q){
                p = a[j][p];
            }
        }
        g << p << '\n';
    }
    return 0;
}