Cod sursa(job #751390)
| Utilizator | Data | 25 mai 2012 22:21:13 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.39 kb |
#include<fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
const int m = 1999999973;
int main()
{
unsigned int i, n, p;
long long a, sol = 1;
fin >> n >> p;
a = n;
for (i = 0; ( 1 << i ) <= p; i++)
{
if ( ((1<<i) & p) > 0)
{
sol= (sol * a) % m;
}
a=(a * a) % m;
}
fout << sol;
fin.close();
fout.close();
return 0;
}
