Cod sursa(job #950149)
Utilizator | Rad Emanuel RadEmanuel | Data | 15 mai 2013 22:30:53 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include<fstream>
#define lli long long int
#define mod %1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
lli n,p;
lli f(lli n, lli p)
{
if(p==0)
return 1 mod;
else if(p==1)
return n mod;
else if(p%2)
return (n*f(n*n,(p-1)/2)) mod;
else if(!(p%2))
return (f(n*n,p/2)) mod;
}
int main()
{
fin>>n>>p;
fout<<f(n,p);
return 0;
}