While I'm doing my hacker rank problem I have seen new word instead of using letter like I,j,k .but it is weired .Can I just know what is t_itr is that has any operation? In for loop "for "t_itr" in range t"

t for type and itr for iterator?

By the way, what does angryProfessor do?

Iterator is quite common programming concept so some may take it as common knowledge.

I hate code that's not verbose. I understand it if it's implementing a mathematical algorythm, but commonly it's just better read if it's written without abbreviation and shorted words.

What's up with these watermarks in photos?

@joas what is operation of the for loop and the code that is under for loop.can you explain that?

It looks like a stupid way to handle command line arguments.

I would use the built in libraries for command line args: https://docs.python.org/3.7/...

It will produce much cleaner code.

@Demolishun can you explain the above code?

result = 🤦‍♂️

t_itr is just a name like I j or k. You can put anything you want there as long as it's a valid name and it wont change anything

It looks like a form of Hungarian Notation. It's fallen out of favor, but I agree with Joel Spolsky that that's because most people did it wrong.

Here's his article on doing it right: https://joelonsoftware.com/2005/05/...

It's HackerRank. Solutions are usually set up by default with I/O and some variables that get fed into a solution function.

Up to Python 2, range creates a list. In Python 3, it creates an iterator. The for syntax here simply iterates through an iterable's iterator. So the variable there just holds the value returned from the iterator per iteration.

Single letter variables?
Needlessly shortened variables?

Can you not?

@Root no comment on using user input like this? That's worse imo.

@asgs iter is iterator brother not itr.yeah I solved it's just a variable .

@electrineer Absolutely. I didn't even bother to read it.

@ajay06 no, itr is a very common short form of iterator

But it doesn't matter what it means when the author couldn't be bothered