Cod sursa(job #1024676)

Utilizator george_stelianChichirim George george_stelian Data 8 noiembrie 2013 22:48:07
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.61 kb
#include <cstdio>

using namespace std;

int v[20][250000];
int n,m,i,j,q,x,y;

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",&v[0][i]);
    for(i=1,j=1;j<=n;j<<=1,i++)
    {
        for(q=1;q<=n;q++)
        {
            v[i][q]=v[i-1][v[i-1][q]];
        }
    }
    for(;m;m--)
    {
        scanf("%d%d",&x,&y);
        for(i=0,j=1;j<=y;i++,j<<=1)
        {
            if(j&y) x=v[i][x];
        }
        printf("%d\n",x);
    }
    fclose(stdin);fclose(stdout);
    return 0;
}