Cod sursa(job #1658932)
Utilizator | Data | 21 martie 2016 21:29:31 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include<iostream>
#include<fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long n,p,e=1,x=1,m;
bool v[32];
int main()
{
fin>>n>>p;
while(p>0)
{
m++;
if(p%2==1) v[m]=1;
p/=2;
}
x=n;
n*=n;
for(int i=1;i<=m;i++)
{
if(v[i]==1)
{
e*=x;
}
x*=x; }
fout<<e;
}