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Cod sursa(job #2592740)

Utilizator Mav3rickVanciu Catalin-Marian Mav3rick Data 2 aprilie 2020 11:30:22
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.69 kb
#include <bits/stdc++.h>
using namespace std;

ifstream fin("lgput.in");
ofstream fout("lgput.out");


long long n,p,y;

int main(){
    fin >> n >> p;
    if(p == 0)
    {
        fout << 1;
    }
    else{
        y = 1;
        while(p > 1)
        {
            if(p % 2 == 0)
            {
                n = n * n;
                n = n % 1999999973;
                p = p / 2;
            }
            else
            {
                y = n * y;
                n = n * n;
                n = n % 1999999973;
                y = y % 1999999973;
                p = (p - 1) / 2;
            }
        }
    }
    fout << n * y % 1999999973;

return 0;
}