Cod sursa(job #1976347)

Utilizator VAIonescuIonescu Vlad-Andrei VAIonescu Data 3 mai 2017 09:53:34
Problema Stramosi Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.64 kb
#include <cstdio>
using namespace std;

const int nmax=250000;
int d[nmax+1][18];

int main(){
    freopen("stramosi.in","r",stdin);
    freopen("stramosi.out","w",stdout);
    int n,m;
    scanf("%d%d",&n,&m);
    for (int i=1;i<=n;i++){
        scanf("%d",&d[0][i]);
    }
    for (int j=1;j<=17;j++)
    {
        for (int i=1;i<=n;i++){
            d[j][i]=d[j-1][d[j-1][i]];
        }
    }
    int q,p;
    for (int t=1;t<=m;t++){
        scanf("%d%d",&q,&p);
        for (int i=0;i<=17;i++){
            if ((1<<i)&p){
                q=d[i][q];
            }
        }
        printf("%d\n",q);
    }
    return 0;
}