Cod sursa(job #1487837)

Utilizator alex.nutuNutu Alexandru alex.nutu Data 17 septembrie 2015 15:33:27
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include <iostream>
using namespace std;
#include<fstream>
unsigned mod=100000007;
ifstream f("lgput.in");
ofstream g("lgput.out");
int putere(int x,int p)
{
    if(p==0)
        return 1;
    long long aux=putere(x,p/2);
    if(p%2==0)
        return aux*aux%mod;
    return x*aux*aux%mod;
}
int main()
{
    int a,p;
    f>>a>>p;
    g<<putere(a,p);



    return 0;
}