Cod sursa(job #941190)

Utilizator gedicaAlpaca Gedit gedica Data 18 aprilie 2013 08:29:55
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.68 kb
#include<cstdio>
using namespace std;
int v[20][250001];
int main()
{
    freopen("stramosi.in","r",stdin);
    freopen("stramosi.out","w",stdout);
    int n,m,p,q,i,j;
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    scanf("%d",&v[0][i]);
    for(i=1;i<=17;i++)
    { for(j=1;j<=n;j++)
      {
       v[i][j]=v[i-1][v[i-1][j]];
      }
    }
    while(m)
    {
        m--;
        scanf("%d%d",&q,&p);
        i=0;
        for(i=0;p;++i)
        while(i<=p)
        {
            if(p&(1<<i))
            {
                q=v[i][q];
                p-=(1<<i);
            }
            i++;
        }
        printf("%d\n",q);
    }
    return 0;
    }