Cod sursa(job #941975)
Utilizator | Data | 20 aprilie 2013 12:24:04 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.38 kb |
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int const I= 1999999973;
int n, p;
int ridica (int n, int p)
{
if (p==1) return n;
if (n%2==0) return ridica((long long)n*n%I, p/2)%I;
if (n%2==1) return (long long)ridica((long long)n*n%I, p/2)*n%I;
}
int main()
{
in>>n>>p;
out<<ridica(n, p);
return 0;
}