Uva 10019- Funny Encryption Method

#include<bits/stdc++.h>

using namespace std;

int bin(int n){

int k=0,l=0;

while(n!=0){

l = n%2,n/=2;

if(l==1)k++;

}

return k;

}

int hex(int n1){

int k1=0,l1=0,p=1;

while(n1!=0){

l1 = n1%10,n1/=10;

k1 += l1*p;

p *= 16;

}

k1 = bin(k1);

return k1;

}

int main()

{

int n,i,j;

cin>>n;

while(n--){

cin>>i;

cout<<bin(i)<<" "<<hex(i)<

}

return 0;

}