Cod sursa(job #2074659)
Utilizator | Data | 24 noiembrie 2017 21:04:08 | |
---|---|---|---|
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 f("lgput.in");
ofstream g("lgput.out");
int lgput(int a, int b)
{
if (b == 0)
{
return 1;
}
if (b == 1)
{
return a;
}
if (b % 2 == 1)
{
return a*lgput(a, b - 1);
}
return lgput(a * a, b / 2);
}
int main()
{
int a, b;
f>>a>>b;
g<<lgput(a, b);
return 0;
}