challenge:a program of string for begineers

Question

write a program in which convert names first latter into calital then apply dot & then last name
ex- rahul patel= R.patel
or hemant singh chouhan= H.S.chouhan
name may contain first name & last name or
first name,middle name,last name

Answer 1

Here is my try:
https://code.sololearn.com/cqteeAxwO5mQ/?ref=app

Answer 2

https://code.sololearn.com/c443zQozNJYl/?ref=app