Cod sursa(job #2006346)
Utilizator | Data | 29 iulie 2017 15:15:17 | |
---|---|---|---|
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;
long long x,y;
ifstream fi("lgput.in");
ofstream fo("lgput.out");
long long exponentiere(long long n, long long p)
{
if(p==1)
return n;
if(p%2==0)
return exponentiere(n*n, p/2);
else
return exponentiere(n*n, p/2)*n;
}
int main()
{
fi>>x>>y;
fo<<exponentiere(x,y);
}