Cod sursa(job #2154843)

Utilizator radu.leonardoThe Doctor radu.leonardo Data 7 martie 2018 12:46:31
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include <bits/stdc++.h>
using namespace std;
int N,M;
int DP[19][2500001];
ifstream f("stramosi.in");
ofstream g("stramosi.out");

int main()
{
    f>>N>>M;
    for(int i=1; i<=N; i++)
        f>>DP[0][i];

    for(int i=1; (1<<i)<=N; i++)
        for(int j=1; j<=N; j++)
            DP[i][j]=DP[i-1][DP[i-1][j]];

    for(int i=1; i<=M; i++)
    {
        int Q,P,power=0;
        f>>Q>>P;
        while(P!=0)
        {

            if(P%2) Q=DP[power][Q];
            power++;
            P/=2;
        }
        g<<Q<<'\n';
    }
}