Cod sursa(job #917565)
Utilizator | Data | 18 martie 2013 09:17:28 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.43 kb |
#include <iostream>
#include <fstream>
using namespace std;
long long putere(long long n, long long p)
{
if(p>1)
{
if(p%2==0)
return putere(n*n,p/2);
else
return n*putere(n*n,p/2);
}
}
int main()
{
long long n,p;
ifstream f("lgput.in");
f >> n >> p;
f.close();
ofstream g("lgput.out");
g << putere(n,p);
g.close();
return 0;
}