Cod sursa(job #2522062)

Utilizator daru06Daria Culac daru06 Data 11 ianuarie 2020 22:23:24
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.55 kb
#include <fstream>
#define MOD 1999999973

using namespace std;

ifstream f("lgput.in");
ofstream g("lgput.out");

long long n,p;


///varianta iterativa la functie;
long long putere(long long n, long long p)
{
    int rez=1;
    while(p>0)
        if(p%2==0)
        {
            n=(n*n)%MOD;
            p/=2;
        }
        else
        {
            rez=(rez*n)%MOD;
            p--;
        }
    return rez;
}

int main()
{
    f>>n>>p;
    n=n%MOD;
    g<<putere(n,p);
    f.close();
    g.close();
    return 0;
}