Cod sursa(job #857167)

Utilizator dragos_vecerdeaVecerdea Dragos dragos_vecerdea Data 17 ianuarie 2013 15:06:36
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.36 kb
#include <fstream>
int const R=1999999973;
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long long putere (long long n ,long long p)
{
    if(p==0) return 1;
    if(p%2==0) return putere(n*n, p/2);
    else return (n*n, p/2);
}
int main()
{
    int n,p , s;
    in>>n>>p;
    s=putere(n , p)%R;
    out<<s;
    return 0;
}