Cod sursa(job #1016264)

Utilizator nicuvladNicu Vlad nicuvlad Data 25 octombrie 2013 23:08:52
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.47 kb
#include <fstream>
#define MAXN 250001
#define MAXLOGN 18
using namespace std;
int a[MAXLOGN][MAXN];
int main()
{
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
int n,m;
fin>>n>>m;
int p,q;
for (int i=1;i<=n;i++)  fin>>a[0][i];

for (int i=1;i<MAXLOGN;i++)
    for (int j=1;j<=n;j++) a[i][j] = a[i-1][a[i-1][j]];
for (int i=0;i<m;i++)
{ fin>>q>>p;
for (int k=17;k>=0 && q>0;k--)
    if (p & (1<<k))
        q = a[k][q];
    fout<<q<<"\n";
    }
}