Cod sursa(job #1684296)

Utilizator MaraaMMihali Mara MaraaM Data 10 aprilie 2016 22:34:44
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.64 kb
#include <fstream>
using namespace std;
#define NMAX 250005
#define LOG 18
ifstream f("stramosi.in");
ofstream g("stramosi.out");
int a[LOG][NMAX];
int n,m,nod,p;
int i,j;
int stramos(int nod, int p)
{
    int i=0;
    while(p!=0)
    {
        if(p%2) nod=a[i][nod];
        p=p/2;
        ++i;
    }
    return nod;
}
int main()
{
   f>>n>>m;
   for(i=1;i<=n;i++)
      f>>a[0][i];
   for(i=1;(1<<i)<=n;i++)
    for(j=1;j<=n;j++)
      if(a[i-1][j]) a[i][j]=a[i-1][a[i-1][j]];
   for(int k=1;k<=m;k++)
   {
       f>>nod>>p;
       int s;
       s=stramos(nod,p);
       g<<s;
       g<<'\n';
   }
    return 0;
}