Cod sursa(job #1378517)

Utilizator badea_adi1999Badea Adrian Catalin badea_adi1999 Data 6 martie 2015 12:42:41
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
#define mod 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long i,sol=1;


int main()
{
    unsigned int a,b;
    f>>a>>b;
    for (i=1;i<=b;i<<=1) {
        if ((b&i)!=0)
            sol=(sol*a)%mod;
        a=(1LL*a*a)%mod;
    }
    g<<sol;
    return 0;
}