Cod sursa(job #819127)
Utilizator | coman cosmin Coman95 | Data | 18 noiembrie 2012 16:05:53 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
#define m 1999999973
int main()
{
unsigned long long a, b, r = 1;
fin >> a >> b;
for( ; b; b = b/2 )
{
if( b%2 == 1 )
r = (r*a)%m;
a = (a*a)%m;
}
fout << r;
fin.close();
fout.close();
return 0;
}