Cod sursa(job #915908)

Utilizator PetrutiuPaulPetrutiu Paul Gabriel PetrutiuPaul Data 15 martie 2013 15:29:25
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.56 kb
#include <fstream>
#include <iostream>

using namespace std;
 
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
 
int j,i,n,m,a[20][250010],x,y;
 
int main(){
    fin>>n>>m;
    for (i=1;i<=n;i++) fin>>a[0][i];
    for (i=1;i<=17;i++) 
        for (j=1;j<=n;j++)
            a[i][j]=a[i-1][a[i-1][j]];
    while(m) 
	{
        fin>>x>>y;
        for (i=0;y>0;i++)
            if ((y & 1<<i)>0)
			{
                x=a[i][x];
                y-=1<<i;
            }
        fout<<x<<'\n';
        m--;
    }
     
    return 0;
}