Cod sursa(job #2739214)
Utilizator | Data | 7 aprilie 2021 10:53:26 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long pwr(int b, int exp)
{
if(!exp)
{
return 1;
}
if(exp % 2)
{
return b * pwr(b * b, exp / 2);
}
return pwr(b * b, exp / 2);
}
int main()
{
int n,p;
fin>>n>>p;
fout<<pwr(n,p);
return 0;
}