Cod sursa(job #1188228)
Utilizator | Data | 19 mai 2014 08:07:34 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <fstream>
using namespace std;
const long long mod=1999999973;
long long n, p;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long Exp(int x, int p)
{
if (p!=1) {
if (p%2==0)
return Exp(x*x, p/2)%mod;
else
return (n*Exp(x*x, p/2)%mod)%mod;
}
else
return x;
}
int main()
{
f>>n>>p;
g<<Exp(n, p);
return 0;
}