Cod sursa(job #1508077)
Utilizator | Data | 22 octombrie 2015 11:44:36 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.38 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long long int power(long long int x, long long int p)
{
if(p == 0)
return 1;
long long int d = power(x, p / 2);
if(p % 2 == 0)
return d * d;
else
return x * d * d;
}
int main()
{
int n, k;
in >> n >> k;
out << power(n, k);
return 0;
}