Cod sursa(job #3262573)

Utilizator PetruApostolApostol Mihnea Petru PetruApostol Data 10 decembrie 2024 19:45:33
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.59 kb
#include <fstream>
using namespace std;

ifstream cin("stramosi.in");
ofstream cout("stramosi.out");

int tata[250001][31];

int main()
{
    int n,m,i,nod,bit,a;
    cin>>n>>m;
    for(i=1;i<=n;i++){
        cin>>tata[i][0];
    }
    for(i=1;i<=30;i++){
        for(nod=1;nod<=n;nod++){
            tata[nod][i]=tata[tata[nod][i-1]][i-1];
        }
    }

    for(i=1;i<=m;i++){
        cin>>nod>>a;
        for(bit=30;bit>=0;bit--){
            if(a&(1<<bit)){
                nod=tata[nod][bit];
            }
        }
        cout<<nod<<"\n";
    }
    return 0;
}