Cod sursa(job #2281413)
Utilizator | Data | 12 noiembrie 2018 10:47:05 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.43 kb |
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long int lgput(long long int n,long long int p)
{
if(p==1)
return n;
else if(p%2==0)
{
return lgput(n*n,p/2);
}
else if(p%2!=0)
{
return lgput(n*n,p/2)*n;
}
return 0;
}
int main()
{
long long int n,p;
f>>n;
f>>p;
g<<lgput(n,p);
}