Feeling not so good right now haha. Just insane!

I just passed this in C and I'm socked at how bad my solution was. It was just a complete over complication of a very simple math related question. I really need to improve my math intuition on questions like these. Thanks for this great kata!

Ok, I will look into it. Thanks so much for the help!

I hope to ask someone for help with this problem. I implemented a solution in C but during the random tests, one or more of the tests fail. Looking into my solution I'm very sure that the code is solving the problem correctly. Here are some results from my code, using random inputs of my own:

input: abcdefghijklmnopqrstuvwxyz
output: 
 AbCdEfGhIjKlMnOpQrStUvWxYz
 aBcDeFgHiJkLmNoPqRsTuVwXyZ

input: okwwkspoginevairavzasqukvubmhkjq
output: 
 OkWwKsPoGiNeVaIrAvZaSqUkVuBmHkJq
 oKwWkSpOgInEvAiRaVzAsQuKvUbMhKjQ

input: mgewjuzacjjlkyjlxcirwxwtwjwwiaxh
output: 
 MgEwJuZaCjJlKyJlXcIrWxWtWjWwIaXh
 mGeWjUzAcJjLkYjLxCiRwXwTwJwWiAxH

input: mgewj   uzacjjlkyjlxcirwxwt   wjwwiaxh
output: 
 MgEwJ   UzAcJjLkYjLxCiRwXwT   WjWwIaXh
 mGeWj   uZaCjJlKyJlXcIrWxWt   wJwWiAxH

input: 9{cym.gftj&$nb8e
output: 
 9{CyM.GfTj&$Nb8e
 9{cYm.gFtJ&$nB8E

input: jku72&bs_j-63dr@a?#7x54?a^y
output: 
 JkU72&Bs_j-63dR@A?#7X54?A^Y
 jKu72&bS_J-63Dr@a?#7x54?a^y

input: rq7Ej#ahHXgJ2+q#
output: 
 Rq7eJ#AhHxGj2+Q#
 rQ7Ej#aHhXgJ2+q#

What am I missing? Thanks!

No need to apologize :-)

Thank you very much for the information. I'm new to Java and am still learning. You are correct I'm really not sure why I did this but now after reading your comment I can see how stupid it was. Thanks once again.

Good example of return statements and codeflow for bigginers. I Like :-)