Cod sursa(job #2281403)
Utilizator | Data | 12 noiembrie 2018 10:37:35 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long int lgput(int n,int p)
{
long long int result;
if(p==1)
return n;
else if(p%2==0)
{
result=lgput(n,p/2);
return result*result;
}
else if(p%2!=0)
{
result=lgput(n,p/2);
return result*result*n;
}
}
int main()
{
int n,p;
f>>n;
f>>p;
g<<lgput(n,p);
}