Cod sursa(job #1748206)

Utilizator ionanghelinaIonut Anghelina ionanghelina Data 26 august 2016 11:32:34
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.57 kb
#include<bits/stdc++.h>
#define MOD 1999999973
using namespace std;
int n,p,n1,nr,x,y;
int main()
{
    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);
    scanf("%d%d",&n,&p);
    n1=1;
    nr=p;
    while (nr)
    {
        if(!(nr%2))
        {
            x=n%MOD;
            n=(x*x)%MOD;
            nr>>=1;
        }
            else
            {
                x=n%MOD;
                y=n1%MOD;
                n1=(x*y)%MOD;
                nr--;
            }

    }
    n1=n1%MOD;
    printf("%d\n",n1);
    return 0;
}