Cod sursa(job #2261580)

Utilizator vladutbercoviciBercovici Vlad Stefan vladutbercovici Data 16 octombrie 2018 13:27:13
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.45 kb
#include <fstream>
#define MOD 1999999973
using namespace std;
typedef unsigned long ul;
int main()
{
    ul n,p,k=n;
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin>>n>>p;
    fin.close();
    while(p>1)
        if(p%2==0)
        {
            k=(k*k)%MOD;
            p/=2;
        }
        else
        {
            k=(k*n)%MOD;
            p--;
        }
    fout<<k%MOD;
    fout.close();
    return 0;
}