Cod sursa(job #1516022)
| Utilizator | Data | 2 noiembrie 2015 16:45:55 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.38 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int lgpower(int a, int b)
{
if(b==1)
return a;
long long int k=lgpower(a,b/2);
k*=k;
if(b%2==1)
k*=a;
return k;
}
int main()
{
int a,b;
f>>a>>b;
g<<lgpower(a,b);
return 0;
}
