Cod sursa(job #2102636)

Utilizator natrovanCeval Marius natrovan Data 9 ianuarie 2018 10:26:47
Problema Ridicare la putere in timp logaritmic Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 0.49 kb
#include <fstream>

using namespace std;

ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long b,p;
long long lgput(int b,int p)
{
    if(p==0)return 1;
    if(p==1)return b;
    if(p%2==0)
    {
        long long aux=lgput(b,p/2)%1999999973;
        return aux*aux%1999999973;
    }
    else
    {
        long long aux=lgput(b,p/2)%1999999973;
        return aux*aux*b%1999999973;
    }
}

int main()
{
    fin>>b>>p;
    fout<<lgput(b,p);
    return 0;
}