Cod sursa(job #2400278)
Utilizator | Data | 8 aprilie 2019 16:24:36 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.36 kb |
//#include <iostream>
#include <fstream>
using namespace std;
ifstream cin("lgput.in");
ofstream cout("lgput.out");
long long pt(int a, int b)
{
int r=1;
while (b)
{
if(b%2==1) r=1LL*r*a;
a=1LL*a*a;
b=b/2;
}
return r;
}
int main()
{
int a,b;
cin>>a>>b;
cout<<pt(a,b);
return 0;
}