Regarding a programme

#1

I asked a doubt regarding a program in assignment " chewbecca and number" in which I forget to tell that the output shouldn’t contain leading zeroes.
here is the link for problemhttps://online.codingblocks.com/app/player/176096/content/171038/4713/code-challenge

Also I have some doubts in the program provided by TA.https://ide.codingblocks.com/s/441468
I can;t understand two lines.

#2

Hello @sarthak_singhal what is your doubt?
Which lines you have not understood?

#3

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