Cod sursa(job #1482808)

Utilizator FairPlay94George Cioroiu FairPlay94 Data 7 septembrie 2015 22:37:35
Problema Stramosi Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.98 kb
#include <cstdio>
#include <iostream>

using namespace std;

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

   // ios::sync_with_stdio(false);
    //cin.tie(0);

    FILE* f = fopen("stramosi.in", "r");
    FILE* g = fopen("stramosi.out", "w");
    int n, m;
    fscanf(f, "%d%d", &n, &m);
    int s[20][100];
    for (int i = 0; i < 20; i++) {
        s[i][0] = 0;
    }
    for (int i = 1; i <= n; i++) {
        fscanf(f, "%d", &s[1][i]);
        s[0][i] = 0;
    }
    for (int i = 2; i < 20; i++) {
        for (int j = 1; j <= n; j++) {
            s[i][j] = s[i - 1][s[i -1][j]];
        }
    }
    for (int i = 1; i <= m; i++) {
        int q, p, r = 1;
        fscanf(f, "%d%d", &q, &p);
        while (q != 0 && p > 0) {
            if (p % 2 == 1) {
                q = s[r][q];
            }
            p >>= 1;
            r++;
        }
        fprintf(g, "%d\n", q);
    }

    return 0;
}