Cod sursa(job #2154846)

Utilizator radu.leonardoThe Doctor radu.leonardo Data 7 martie 2018 12:49:09
Problema Stramosi Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.53 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)
        {
            if(P&2) Q=DP[power++][Q];
            P>>=1;
        }
        g<<Q<<'\n';
    }
}