Cod sursa(job #2617366)

Utilizator pascustefanPascu Stefan Liviu pascustefan Data 21 mai 2020 15:54:18
Problema Stramosi Scor 90
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.74 kb
#include <bits/stdc++.h>

using namespace std;

ifstream fin("stramosi.in");
ofstream fout("stramosi.out");

int n, m, dp[19][250010], q, p, r, rez;

int main() {
    freopen("stramosi.in", "r", stdin);
	freopen("stramosi.out", "w", stdout);

    scanf("%d %d", &n, &m);
    for(int i = 1; i <= n; i++)
        scanf("%d", &dp[0][i]);
    for(int j = 1; j <= 18; j++)
        for(int i = 1; i <= n; i++)
            dp[j][i] = dp[j - 1][dp[j - 1][i]];

    for(int i = 1; i <= m; i++) {
        scanf("%d%d", &q, &p);
        r = 0;
        rez = q;

        while(p != 0) {
            if(p % 2 != 0)
                rez = dp[r][rez];
            p = p >> 1;
            r++;
        }
        printf("%d\n", rez);
    }
}