Cod sursa(job #1470563)
Utilizator | Data | 11 august 2015 17:32:00 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.45 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long n,p;
long long pow(long long a, long long b)
{
long long rez=1;
while(b>0)
{
if(b%2==0)
{
a=a*a;
b=b/2;
}
else
{
rez=rez*a;
b--;
}
}
return rez;
}
int main()
{
fin>>n>>p;
fout<<pow(n,p);
return 0;
}