Cod sursa(job #2674151)

Utilizator raduk11Serban Mihai-Radu raduk11 Data 18 noiembrie 2020 18:11:10
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.48 kb
#include <fstream>

using namespace std;

const int mod=1999999973;

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

long long powlg(long long a, long long p)
{
    long long val=1,x=a%mod;
    while(p>0)
        if(p%2==0)
        {
            x=x*x%mod;
            p/=2;
        }
        else
        {
            val=val*x%mod;
            p--;
        }
    return val;
}
int main()
{
    long long n,p;
    f>>n>>p;
    g<<powlg(n,p);
    return 0;
}