Cod sursa(job #1934078)

Utilizator qThunderStefan Durlanescu qThunder Data 21 martie 2017 09:35:35
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>
#include <algorithm>
#include <cstring>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
unsigned int a,n,p;
int plg(int a,int n)
{
    if(n==1)
        return a;
    p=plg(a,n/2);
    p=((long long)p*p)%1999999973;
    if(n%2==1)
    {
        p=((long long)p*a)%1999999973;
    }
    return p;
}
int main()
{
    fin>>a>>n;
    fout<<plg(a,n);
    return 0;
}