Cod sursa(job #3183067)

Utilizator juincPopescu Marian juinc Data 10 decembrie 2023 16:13:05
Problema Stramosi Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.72 kb
#include <fstream>

int par[18][25e4 + 1];

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 >> par[0][i];
    

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

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

        int stramos = q;
        for (int j = 0; (1 << j) <= p; j++) 
            if (p & (1 << j)) 
                stramos = par[j][stramos];
            
        

        fout << stramos << '\n';
    }

    return 0;
}