Cod sursa(job #1082052)
Utilizator | Data | 14 ianuarie 2014 08:29:09 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int n, p;
int lgput(int x, int n)
{
if(n == 0)
{
return 1;
}
else if(n == 1)
{
return x;
}
else if(n % 2 == 0)
{
lgput(x*x, n/2);
}
else if(n % 2 == 1)
{
lgput(x*x, (n-1)/2);
}
}
int main()
{
fin >> n >> p;
fout << lgput(n, p) % 1999999973;
}