Cod sursa(job #1155942)

Utilizator TudorMTudor Moldovanu TudorM Data 27 martie 2014 12:07:33
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.41 kb
#include<fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long a,p;
long long putere(long long a, long long n)
{
    long long x;
    if(n==1)return a;
    if(n%2==1)return a*putere(a,n-1)%1999999973;
        x=putere(a,n/2)%1999999973;
        return x*x%1999999973;
}
int main()
{
    f>>a>>p;
    g<<putere(a,p);
    f.close();
    g.close();
    return 0;
}