Cod sursa(job #1969309)

Utilizator popescu.octavianPopescu Octavian popescu.octavian Data 18 aprilie 2017 13:26:11
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <fstream>
#define MOD 1999999973
using namespace std;

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

int n, p;

int lgput (int n, int p)
{
    int a=n, sol=1, i;

    for(i=0; (1<<i)<=p; i++)
    {
        if((1<<i)&p)
            sol=(1LL*sol*a)%MOD;
        a=(1LL*a*a)%MOD;
    }
    return sol%MOD;
}
int main()
{
    f>>n>>p;
    g<<lgput(n,p);
    return 0;
}