Question

With reference to my previous question, How can i implement AND and OR operations in c++

My next question is, Sometimes it outputs some weird numbers for example 110010 & 010101 = 110591. Why does that happen?

#include <iostream>
#include <iomanip>

using namespace std;

int main ()
{
    long int s;
    long int l;
    long int r;

    cin>>s;
    cout<<endl;
    cin>>l;
    cout<<setfill('0')<<setw (5)<<s<<endl<<setfill('0')<<setw (5)<<l<<endl;
    r=s|l;
    cout<<r<<endl;
    return 0;
}

Answer 1

For the question — how to input binary numbers instead of decimal.

You can read them as strings, and then convert them assuming that they are base 2.

So, code like this (not tested!):

std::string s_str;

cin >> s_str;
...
// now convert as if it's a binary string, thats what the last arg following does
s = strtol(s_str.c_str(), 0, 2);