Cod sursa(job #2431016)

Utilizator mariasmmskklns mariasmm Data 17 iunie 2019 17:55:49
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.4 kb
#include <iostream>
#include <fstream>
const int mod=1999999973;
using namespace std;

int ridicare(int a, int b)
{
    if (b==0)
        return 1;
    if (b%2==1)
        return a*(ridicare(a/2,(b-1)/2))%mod;
    else
        return (ridicare(a*a,b/2))%mod;
}

int main()
{
    ifstream f("lgput.in");
    ofstream g("lgput.out");
    long long a, b;
    f>>a>>b;
    g<<ridicare(a,b);
}