Cod sursa(job #1561576)

Utilizator PaulHerHerman Paul PaulHer Data 4 ianuarie 2016 11:44:06
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include<iostream>
#include<fstream>
using namespace std;
const int MOD=1999999973;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int lgput (int x,int y)
{
    int z=1;
    while (y!=0)
    {
        if (y%2==0)
        {
            x=(x*x)%MOD;
            y=y/2;
        }
        else
        {
            z=(z*x)%MOD;
            y=y-1;
        }
    }
    return z;
}
int main ()
{
    int a,b;
    fin>>a>>b;
    int x=lgput(a,b);
    fout<<x;
}