Cod sursa(job #2070073)
Utilizator | Data | 19 noiembrie 2017 10:59:23 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.52 kb |
#include <fstream>
using namespace std;
int putere(int a, int b)
{
int p=1;
while(b>1)
{
if(b%2==1)
{
p=p*a;
b--;
}
else
{
a=a*a;
b/=2;
}
}
return a*p;
}
int main()
{
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long N, P, X;
fin >> N >> P;
if(P!=0)
X= putere(N,P);
else X=1;
fout << X%1999999973;
return 0;
}