Cod sursa(job #2501278)

Utilizator Cojocaru_Andrei_CristianCojocaru Andrei Cristian Cojocaru_Andrei_Cristian Data 29 noiembrie 2019 12:51:21
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.59 kb
#include <fstream>

using namespace std;

int v[22][250005];

int main()
{
    ifstream cin("stramosi.in");
    ofstream cout("stramosi.out");
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        cin>>v[0][i];
    for(int mask=1;mask<=18;mask++)
        for(int i=1;i<=n;i++)
            v[mask][i]=v[mask-1][v[mask-1][i]];
    for(int i=1;i<=m;i++)
    {
        int x,y,ans;
        cin>>x>>y;
        ans=x;
        for(int p=0;(1<<p)<=y;p++)
        {
            if(y&(1<<p))
                ans=v[p][ans];
        }
        cout<<ans<<"\n";
    }
    return 0;
}