Cod sursa(job #1146732)

Utilizator alecsandrualex cuturela alecsandru Data 19 martie 2014 11:23:21
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.67 kb
#include<cstdio>
#include<cmath>
using namespace std;
int n,m,i,j,d[20][250010],lim,x,nr,cnt;
int main()
{
    freopen("stramosi.in","r",stdin);
    freopen("stramosi.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&d[0][i]);
    }
    lim=log2(n)+1;
    for(i=1;i<=lim;i++)
        for(j=1;j<=n;j++)
        {
            d[i][j]=d[i-1][d[i-1][j]];
        }
    for(i=1;i<=m;i++)
    {
        scanf("%d%d",&x,&nr);
        cnt=0;
        while(nr!=0)
        {
            if(nr%2!=0)
                x=d[cnt][x];
            cnt++;
            nr/=2;
        }
        printf("%d\n",x);
    }
    return 0;
}