help to optimize code

Question

Hello All,

Below is my code:

https://code.sololearn.com/ci4Oi24Lq3xb

Request your view on the same in terms of robustness and optimization.

Thanks a lot for your input in advance...!

Answer 1

No sorting required, do it in one pass, use appropriate data structure.

Not sure if your code is correct either, haven’t really checked it

Answer 2

Hi Bobby Fischer , I also thought about sorting issue....

I could not decide as map don't allow duplicate entry but it does sort while inserting...

So I decided to go with multimap but again it would have duplicates and will have to go with count of each character to process...

Am I still missing something else ?