Cod sursa(job #2233157)
| Utilizator | Data | 22 august 2018 14:06:58 | |
|---|---|---|---|
| Problema | Stramosi | Scor | 80 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.64 kb |
#include <fstream>
using namespace std;
ifstream cin("stramosi.in");
ofstream cout("stramosi.out");
const int N = 25e4 + 7, LN = 17;
int rmq[N][LN];
int main()
{
int n, q, p;
cin >> n >> q;
for (int i = 1; i <= n; ++i)
cin >> rmq[i][0];
for (int i = 1; i <= n; ++i)
for (int p = 1; (1<<p) <= n; ++p)
rmq[i][p] = rmq[rmq[i][p - 1]][p - 1];
while (q--) {
cin >> n >> p;
int pow(0);
while (p) {
if (p&1)
n = rmq[n][pow];
p >>= 1;
++pow;
}
cout << n << '\n';
}
return 0;
}
