Cod sursa(job #3122755)

Utilizator CelestinNegraru Celestin Celestin Data 20 aprilie 2023 15:21:37
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.85 kb
#include <fstream>
#define maxi 250005
using namespace std;
ifstream f("stramosi.in",ios::in);
ofstream g("stramosi.out",ios::out);
int n,m,dp[19][maxi],log2;
void dinamica()
{
    int aux=n;
    while(aux)
    {
        log2++;
        aux>>=1;
    }
    log2--;
    for(int i=1;i<=log2;i++)
    {
        for(int j=1;j<=n;j++)
        {
            dp[i][j]=dp[i-1][dp[i-1][j]];
        }
    }
}
int main()
{
    int x,p,q;
    f>>n>>m;
    for(int i=1;i<=n;i++)
    {
        f>>x;
        dp[0][i]=x;///starile de baza
    }
    dinamica();
    for(int i=1;i<=m;i++)
    {
        f>>q>>p;
        int ans=q;
        for(int j=0;j<=log2;j++)
        {
            if(p&(1<<j))
            {
                ans=dp[j][ans];
            }
        }
        g<<ans<<'\n';
    }
    f.close();
    g.close();
    return 0;
}