Cod sursa(job #1281531)

Utilizator syna123Andreea Nicoara syna123 Data 3 decembrie 2014 12:00:32
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream in ("lgput.in");
ofstream out ("lgput.out");
int R=1999999973;
int putere (int a, int n)
{
    if(n==1) return a;
    if(n%2==1) return a*putere ((long long)a*a%R,n/2);
    return putere (a*a,n/2);
}
int main()
{
    int N,P;
    in>>N>>P;
    out<<putere (P,N);
    return 0;
}