Cod sursa(job #2925975)

Utilizator tudorbuhniaTudor Buhnia tudorbuhnia Data 16 octombrie 2022 15:22:21
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.44 kb
#include <fstream>
using namespace std;
#define ull unsigned long long
const ull r=1999999973;
int pwr(ull y,ull n,ull p)
{
    if(p==0)
        return y;
    if(p%2==0)
    {
        return pwr(y%r,n*n%r,p/2);
    }
    else
    {
        return pwr(y*n%r,n*n%r,(p-1)/2);
    }
}
int main()
{
    ifstream cin("lgput.in");
    ofstream cout("lgput.out");
    ull a,b;
    cin >> a >> b;
    cout << pwr(1,a,b);
    return 0;
}