Mai intai trebuie sa te autentifici.
Cod sursa(job #627878)
| Utilizator | Data | 30 octombrie 2011 21:03:53 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 30 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.48 kb |
#include <fstream>
using namespace std;
ifstream fi("lgput.in");
ofstream fo("lgput.out");
long long n,p,rez;
long long pow2(long long n,long long p)
{
if(p==0)
return 1;
else if(p%2==0)
{
long long q=pow2(n,p/2);
q=q*q;
q%=1999999973;
return q;
}
else
{
long long q=pow2(n,(p-1)/2);
q=q*q;
q=q*n;
q%=1999999973;
return q;
}
}
int main()
{
fi>>n>>p;
fi.close();
rez=pow2(n,p);
fo<<rez<<"\n";
fo.close();
return 0;
}
