I am confused with where to put spacebar in code

Question

For ex- when i use - usingnamespace std it doesn't
Run but when i use same text with proper space it runs.

Answer 1

You need to use at least one space between two keywords/identifiers. You can use as many spaces/tabs/new lines as you like, so this:

using namespace std;

is equivalent to this:

using

namespace std
;