Cod sursa(job #1549909)
Utilizator | Data | 12 decembrie 2015 21:56:07 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <cstdio>
using namespace std;
int n,p;
int putere(int &n,int &p){
int nr = 1;
while(p != 0){
if(p % 2 == 1){
p -= 1;
nr *= n;
}
n = n * n;
p /= 2;
}
return nr;
}
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
scanf("%d %d",&n,&p);
printf("%d ",putere(n,p));
return 0;
}