Cod sursa(job #1807928)

Utilizator ggaaggaabbiigoteciuc gabriel ggaaggaabbii Data 17 noiembrie 2016 08:25:27
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.41 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
#define MOD 1999999973
ifstream f("lgput.in");
ofstream g("lgput.out");
long long putere(long long a, long long nr)
{
    if(nr==0)
        return 1;
    long long c=putere(a,nr/2);
    c*=c;
    c%=MOD;
    if(nr%2==0)
    return c%MOD;
    return (c*a)%MOD;
}
long long a,n;
int main()
{
    f>>a>>n;
    g<<putere(a,n);
    return 0;
}