Cod sursa(job #1067973)
Utilizator | Neatu Remus Mihai remus88 | Data | 27 decembrie 2013 18:58:41 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.56 kb |
#include <fstream>
#define x 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,k;
long long put(long long n, long long k)
{
if (k==0) return 1;
long long m=1;
while (k!=1)
if (k%2==0)
{
n=(n*n)%x;
k=k/2;
}
else
{
m=(n*m)%x;
--k;
}
return (m*n)%x;
}
int main()
{
f>>n>>k;
g<<put(n,k)<<'\n';
f.close(); g.close();
return 0;
}