Cod sursa(job #2514140)

Utilizator kokitchyAlastor kokitchy Data 24 decembrie 2019 15:45:16
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.55 kb
#include <fstream>

#define NMAX 250000

int v[20][NMAX];

int main()
{
	std::ifstream fin("stramosi.in");
	std::ofstream fout("stramosi.out");
	
	int n, m;
	fin >> n >> m;

	for (int i = 1; i <= n; i++)
		fin >> v[0][i];

	for(int i = 1; i<= 17; i++)
		for(int j = 1; j <= n; j++)
			v[i][j] = v[i - 1][v[i - 1][j]];

	while (m--) {
		int p, q;
		fin >> q >> p;

		for(int i = 17; i >= 0; i--)
			if ((1 << i) <= p) {
				q = v[i][q];
				p -= (1 << i);
			}

		fout << q << "\n";
	}

	fin.close(), fout.close();

	return 0;
}