Cod sursa(job #3277639)

Utilizator BogdanDavDavid Bogdan BogdanDav Data 17 februarie 2025 09:33:22
Problema Stramosi Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.58 kb
#include <fstream>
using namespace std;
ifstream cin("graf.in");
ofstream cout("graf.out");
const int nmax=250002;
int n,m,dp[nmax][20],p,q;
int main()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        cin>>dp[i][0];
    }
    for(int j=1;j<=19;j++){
        for(int i=1;i<=n;i++){
            dp[i][j]=dp[dp[i][j-1]][j-1];
        }
    }
    for(int i=1;i<=m;i++){
        cin>>q>>p;
        for(int j=19;j>=0;j--){
            if(p>=1<<j){
                q=dp[q][j];
                p-=(1<<j);
            }
        }
        cout<<q<<'\n';
    }
    return 0;
}