Cod sursa(job #1481649)

Utilizator CiobaCatalinCioba Catalin CiobaCatalin Data 5 septembrie 2015 00:15:46
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.53 kb
#include <cstdio>
#include <cstdlib>

using namespace std;

const int mod = 1999999973;
#define ll long long
ll n, k;

ll pow(ll n, ll k) {
    if (k == 0)
        return 1;
    if (k == 1)
        return n % mod;
    if (k % 2 == 1)
        return n * pow(n * n % mod, k / 2) % mod;
    else
        return pow(n * n % mod, k / 2) % mod;
}

int main()
{
    freopen("lgput.in", "r", stdin);
    freopen("lgput.out", "w", stdout);

    scanf("%lld %lld", &n, &k);
    printf("%lld\n", pow(n, k));

    return 0;
}