Cod sursa(job #1667746)

Utilizator alexsandulescuSandulescu Alexandru alexsandulescu Data 29 martie 2016 10:37:11
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <bits/stdc++.h>

using namespace std;
ifstream f ("lgput.in");
ofstream g ("lgput.out");
long long n,p,x;
long long lgput(long long a, long long b){
    if(b==1) return a;
    else{
        if(b%2==0) return lgput((a*a)%1999999973,b/2);
        else return a*lgput((a*a)%1999999973,(b-1)/2);
    }
}
int main()
{
    f>>n>>p;
    g<<lgput(n,p)%1999999973<<'\n';
    return 0;
}