Cod sursa(job #1910154)

Utilizator raulmuresanRaul Muresan raulmuresan Data 7 martie 2017 15:47:57
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.15 kb
#include<fstream>
#include<vector>
#include<string>
#define modulo 666013

using namespace std;

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

const int NMAX = 250005;


string sir;
int i, n, k, j,contor,st,dr,sol,x,y,m,p,q,nod;
int stramos[25][NMAX];
//stramos[i][j] - al 2^i -lea stramos al nodului j

void build()
{
    int i ,j;
    for(i = 1; (1 << i) <= NMAX; i++)
    {
        //fout << (1 << i) <<"\n";
        for(j = 1; j <= n; j++)
        {
            stramos[i][j] = stramos[i - 1][stramos[i - 1][j]];
        }
    }
}

int main()
{
    fin >> n >> m;
    for(i = 1; i <= n ;i++)
    {
        fin >> stramos[0][i];
    }
    build();
    for(i = 1; i <= m ;i++)
    {
        fin >> nod >> p;
        int k = (1 << 17), j = 17;
        while(p)
        {
            if(p >= k)
            {
                p = p - k;
                nod = stramos[j][nod];
            }
            j--;
            k = k / 2;
        }
        fout << nod << "\n";
        //fout << k <<"\n";

    }

    for(i = 1; (1 << i) <= NMAX; i++)
    {
        //fout << (1 << i) <<"\n";
    }


}