Cod sursa(job #1380593)

Utilizator alex.vasiuVasiu Alexandru alex.vasiu Data 8 martie 2015 09:59:24
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include<fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long x;
long long p,n;
void put(int k)
{
    if(k)
    {
        if(k%2==1)
        {
            x=(x*n)%1999999973;
            put(k-1);
        }
        else
        {
            n=(n*n)%1999999973;
            put(k/2);
        }
    }
}
int main()
{
    f>>n>>p;
    x=1;
    put(p);
    g<<x<<"\n";
    g.close();
    return 0 ;
}