Cod sursa(job #2090992)

Utilizator valorosu_300Cristian Gherman valorosu_300 Data 18 decembrie 2017 22:49:23
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
const int MOD = 1999999973;
int main()
{
    long long int n,p,cop, sol = 1;
    in>>n>>p;
    in.close();
    cop = n;
    for(unsigned int i=0;(1<<i)<=p;++i){
        if(((1<<i)&p) > 0)
            sol = (sol * cop) % MOD;
        cop = (cop * cop) % MOD;
    }
    out<<sol<<"\n";
    out.close();
    return 0;
}