Cod sursa(job #903023)

Utilizator mciprianmosincat ciprian mciprian Data 1 martie 2013 18:07:22
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.59 kb
#include <iostream>
#include <fstream>
const int mod=1999999973;

using namespace std;

long long n,p;
long putere(int n,int p,int mod)
    {
        long long r;
        if (p==0) return 1;
        if (p%2==0)
            {
                r=putere(n,p/2,mod);
                return (r*r)%mod;
            }
            else
                {
                    r=putere(n,p-1,mod);
                    return (r*n)%mod;
                }
    }

int main()
{
    ifstream f("lgput.in");
    ofstream g("lgput.out");

    f>>n>>p;

    g<<putere(n,p,mod);

    return 0;
}