Cod sursa(job #1945885)

Utilizator PletoPletosu Cosmin-Andrei Pleto Data 29 martie 2017 18:52:41
Problema Ridicare la putere in timp logaritmic Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <bits/stdc++.h>
#define MOD 1999999973

using namespace std;

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

int main()
{
    unsigned long long x, n, k, y;
    fin>>x>>n;
    y = x;
    for(k = 1; 1<<k <= n; ++k) {
        x = (x%MOD * x%MOD)%MOD;
    }
    for(k = (1<<(k-1))+1; k <= n; ++k) {
        x = (x%MOD * y%MOD)%MOD;
    }
    fout<<x<<'\n';
    return 0;
}