Cod sursa(job #1761527)

Utilizator alexrusRus Alexandru alexrus Data 22 septembrie 2016 14:06:45
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include<iostream>
#include<fstream>
using namespace std;
long long int a,b,x=1;
const int val=1999999973;
int main()
{
    ifstream f("lgput.in");
    ofstream g("lgput.out");
    f>>a>>b;
    a=a%val;
    while(b)
    {
        if(b%2)
        {
            x=(x*a)%val;
            b--;
        }
        else
        {
            a=(a*a)%val;
            b/=2;
        }
    }
    g<<x;
    return 0;
}