why this code showing error?

Question

https://code.sololearn.com/cUI3wL2j5l8s/?ref=app

Answer 1

Try putting a std:: before the endl 👍

Answer 2

Since you commented the `using namespace std;` line, the `endl` should be written as `std::endl`. The `endl` declaration was included in the std namespace.

Answer 3

This code is showing error as you have written namespace as comment.
To run code properly, remove // from second line. You code will start working

Answer 4

Remove the comment before "using namespace std" then write return 0 if its int function then close curly brackets
If its void main you don't need return 0 statment just close curly brackets