Cod sursa(job #1769797)

Utilizator anamaria41Raicu Ana anamaria41 Data 3 octombrie 2016 10:37:12
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <fstream>

using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int n ,p,x;
int m;
int pow( int a,int b)
{
    int x;
    if(b==0)return 1;
    if(b==1)return a;
    else if(b%2) return (a%m)*pow(a,b-1);
    else
    {
        x=pow(a,b/2)%m;
        return x*x;
    }

}
int main()
{
    f>>n>>p;
    m=1999999997;
    g<<pow(n,p)%m<<'\n';

    return 0;
}