Can some one explain me in the below two codes why exicution time error accuring above the value 18516 and not below to it

Question

https://code.sololearn.com/c8KFdNfVit51/?ref=app
https://code.sololearn.com/clIFuto1p3f9/?ref=app

Answer 1

Harsh Namdev , sololearn gives a certain time limit in which a code can run, if your program exceeds it then it shows execution time out.

Answer 2

Thanks ,
Arsenic, whyfry i got my answer

Answer 3

is paying gonna work?