Cod sursa(job #177120)
| Utilizator | Data | 12 aprilie 2008 12:47:45 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.5 kb |
#include <fstream>
#define mod 1999999973
#define sqr(x) ((x)*(x))
using namespace std;
long long Power(long long x, long long n)
{
if (n == 0) return 1;
if (n%2 != 0) return (x*Power(sqr(x)%mod, (n-1)/2))%mod;
return Power(sqr(x)%mod, n/2)%mod;
}
int main()
{
long long n, p;
ifstream fin("lgput.in");
fin >> n >> p;
fin.close();
ofstream fout("lgput.out");
fout << Power(n, p)%mod << "\n";
fout.close();
return 0;
}
