Cod sursa(job #1612521)

Utilizator Vlad_lsc2008Lungu Vlad Vlad_lsc2008 Data 24 februarie 2016 21:42:29
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <iostream>
#include <cstdio>
#define mod  1999999973
using namespace std;

int main()
{
    int n,p,sol,a,i;
    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);
    cin>>n>>p;
    sol=1; a=n;
    for(i=0;(1<<i)<=p;i++)
    {
        if((1<<i)&p) sol=sol*a%mod;
        a=a*a %mod;
    }
    cout<<sol<<'\n';
    fclose(stdin);
    fclose(stdout);
    return 0;
}