Cod sursa(job #2503260)

Utilizator FrostfireMagirescu Tudor Frostfire Data 2 decembrie 2019 19:29:57
Problema Stramosi Scor 90
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.63 kb
#include <fstream>
#pragma GCC optimize ("O3")

using namespace std;

int dp[250001][19];

int main()
{
    ifstream cin("stramosi.in");
    ofstream cout("stramosi.out");
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, q, nod, dist;
    cin >> n >> q;
    for(int i=1; i<=n; i++) cin >> dp[i][0];
    for(int i=1; i<=18; i++)
        for(int j=1; j<=n; j++) dp[j][i] = dp[dp[j][i-1]][i-1];
    for(int j=1; j<=q; j++)
        {   cin >> nod >> dist;
            for(int i=0; i<=18; i++) if(dist&(1<<i)) nod = dp[nod][i];
            cout << nod << '\n';
        }
    return 0;
}