Cod sursa(job #583754)

Utilizator stef93Stefan Gilca stef93 Data 22 aprilie 2011 15:07:42
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include <fstream>
#define Q 1999999973
using namespace std;
int main()
{
    long long x,y,sol=1,i;
    ifstream in("lgput.in");
    in>>x>>y;
    for(i=0;(1<<i)<=y;i++)
    {
        if((1<<i)&y) sol=(sol*x)%Q;
        x=(x*x)%Q;
    }
    ofstream("lgput.out")<<sol<<'\n';
    return 0;
}