Cod sursa(job #186934)
Utilizator | Zajzon Barna zbarni | Data | 29 aprilie 2008 09:05:34 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include<fstream.h>
#include<math.h>
#include<string.h>
#include<stdlib.h>
//using namespace std;
int main()
{
ifstream be ("lgput.in");
ofstream ki ("lgput.out");
const long k=1999999973;
long long a,b,d=1;
be>>a>>b;
be.close();
if (b==0)
{ ki<<1; }
else {
for (;b>0;b/=2)
{
if (b%2)
d=(d*a)%k;
a=(a*a)%k;
}
ki<<d;
}
ki<<'\n';
ki.close();
return 0;
}