Cod sursa(job #1527527)
Utilizator | Data | 18 noiembrie 2015 11:45:58 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include <fstream>
using namespace std;
ifstream f("lgput.in"); ofstream g("lgput.out");
long long n, p;
long long Pow(int n, int p)
{
if(p==1) return n;
else if(p==0) return 1;
else if(p%2==0) return Pow(n, p/2)*Pow(n, p/2);
else
{
return Pow(n, p/2)*Pow(n, p/2)*n;
}
}
int main()
{
f>>n>>p;
g<<Pow(n, p);
return 0;
}