Cod sursa(job #1815492)
Utilizator | Data | 25 noiembrie 2016 12:20:54 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.29 kb |
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int P(int b,int e)
{
int P=1;
for(;e;e>>=1)
{
if(e&1)P=P*b;
b=b*b;
}
return P;
}
int b,e;
int main()
{
f>>b>>e;
g<<P(b,e);
return 0;
}