NEED to understand NZEC error for KOTLIN, showing AC for JAVA. HOW?

I need to understand why solution for kotlin showed NZEC as same solution I
have submitted in JAVA showed AC solution to me in ongoing FEB LONG 2022
Challenge.

i.e

KOTLIN solution = NZEC error
https://www.codechef.com/viewsolution/58294730
JAVA solution = AC
https://www.codechef.com/viewsolution/58294345

Please provide explanation for the same.

(I believe I have using the KOTLIN latest version and codechef has old
version which led to this issue.Please check and let me know)

PFB

KOTLIN and JAVA file respectively for FEB LONG 2022 CHALLENGE,
question name - Avoid Fixed Points
https://www.codechef.com/FEB222C/problems/NOFIX
question code - NOFIX Error Page | CodeChef

Looking forward for your response.

Thank you
Ruhul Amin