Cod sursa(job #2032606)

Utilizator Horea_Mihai_SilaghiHorea Mihai Silaghi Horea_Mihai_Silaghi Data 5 octombrie 2017 14:43:45
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include<fstream>
#define NrMare 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n, p;
long long log(long long n, long long p)
{
    if(p==1)
        return n%NrMare;
    if(p%2==0)
        return log(n*n%NrMare, p/2) %NrMare;
    else return n*log(n*n%NrMare, (p-1)/2) %NrMare;
}
int main () {
    f>>n>>p;
    g<<log(n, p);
    return 0;
}