Cod sursa(job #1040479)
| Utilizator | Data | 24 noiembrie 2013 16:14:29 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.43 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int pow(int nr, int exp)
{
int p=1,baza=nr;
while(exp)
{
if((exp&1)!=0)
{
p*=baza;
}
exp>>=1;
baza*=baza;
}
return p;
}
int main()
{
int nr,putere;
fin >> nr >> putere;
fout << pow(nr,putere) << "\n";
return 0;
}
