Cod sursa(job #2597856)

Utilizator ptudortudor P ptudor Data 11 aprilie 2020 11:29:18
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <bits/stdc++.h>
using namespace std;

ifstream in("stramosi.in");
ofstream out("stramosi.out");
int n,m,p[250005],dp[19][250005];
int main()
{int i,j,q,P,p_2,stramos;
    in >> n >> m;
    for (i = 1; i <= n; i++) in >> dp[0][i];

    for (j = 1; j <= 18; j++)
        for (i = 1; i <= n; i++)
            dp[j][i] = dp[j - 1][dp[j - 1][i]];

    for (i = 1; i <= m; i++)
    {
        in >> q >> P;
        p_2 = 0;
        stramos = q;
        while (P)
        {
            if (P % 2 == 1)
                stramos = dp[p_2][stramos];
            P >>= 1;
            p_2++;
        }
        out << stramos << "\n";
    }
    return 0;
}