Cod sursa(job #1830207)

Utilizator bogdanboboc97Bogdan Boboc bogdanboboc97 Data 16 decembrie 2016 13:30:32
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.49 kb
#include <fstream>

#define int64 long long

int64 log_pow(int64 nr,int64 p,int64 mod)
{
    int64 res=1;
    while(p>0)
    {
        if(p%2==1)
        {
            res=(res*nr)%mod;
            p--;
        }
        else{
            nr=(nr*nr)%mod;
            p/=2;
        }
    }
    return res;
}

int main()
{
    std::ifstream in("lgput.in");
    std::ofstream out("lgput.out");
    int64 n,p;
    in>>n>>p;
    out<<log_pow(n,p,1999999973);
    in.close();
    out.close();
    return 0;
}