Cod sursa(job #2278235)

Utilizator Adi55AdrianCiurea Adi55 Data 7 noiembrie 2018 15:12:59
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.41 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f ("lgput.in");
ofstream g ("lgput.out");
int k=1999999973;
long int exp(int x,int y)
{
    if(y==1)
    {
        return x;
    }
    if(y&1)
    {
        return x%k*exp(x%k,y-1);
    }
    if(!(y&1))
    {
        return exp(x%k,y/2)*exp(x%k,y/2);
    }
}
int main()
{
    long int n,p;
    f>>n>>p;
    g<<exp(n,p);
}