Cod sursa(job #559515)

Utilizator palcuiealexAlex Palcuie palcuiealex Data 17 martie 2011 21:17:57
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include <iostream>
#include <cstdio>

using namespace std;

const int modulo = 1999999973;

int main()
{
    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);

    int n,p,i;
    unsigned long long sol=1;

    scanf("%d%d",&n,&p);

    for (i=0; (1<<i) <= p; ++i){
        if ( ( (1<<i)&p ) > 0)
            sol = (sol * n) % modulo;
        n = (n * n) % modulo;
    }
    printf("%llu\n",sol);
    return 0;
}