Cod sursa(job #1935385)

Utilizator DavidDSVVoicu David-Sebastian DavidDSV Data 22 martie 2017 11:58:51
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include <fstream>
using namespace std;

ifstream f("lgput.in");
ofstream g("lgput.out");
int exp(int n, int p){
    if(p<0)
        return exp( 1/n, -p);
    else
        if(p==0)
            return 1;
    else
        if(p==1)
            return n;
    else
        if(p%2==0)
            return exp(n*n, p/2);
    else
        if(p%2!=0)
            return exp(n*n,p/2-1);

    }

int n,p;
int main()
{
    f>>n>>p;
    g<< exp(n,p)%1999999973;
    return 0;
}