Cod sursa(job #3264489)

Utilizator Cezar2009Cezar Mihai Titihazan Cezar2009 Data 21 decembrie 2024 17:00:05
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.93 kb
//
//#pragma GCC optimize ("Ofast")
//#pragma GCC optimize ("fast-math")
//#pragma GCC optimize ("unroll-loops")
//#define _USE_MATH_DEFINES
#include <iostream>
#include <fstream>
//#include <vector>
//#include <queue>
//#include <utility>
//#include <algorithm>
//#include <cmath>
//#include <climits>
//#include <bitset>
//#include <iomanip>
using namespace std;

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

int d[20][250010];
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n, m, i, j, q, p;

	fin >> n >> m;
	for (i = 1; i <= n; ++i)
	{
		fin >> d[0][i];
	}

	for (i = 1; (1<<i) <= n; ++i)
	{
		for (j = 1; j <= n; ++j)
		{
			d[i][j] = d[i - 1][d[i - 1][j]];
		}
	}


	for (i = 1; i <= m; ++i)
	{
		fin >> q >> p;

		for (j = 0; p!=0; ++j)
		{
			if (p & 1)
			{
				q = d[j][q];
			}
			p = p >> 1;
		}

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


	return 0;
}