Cool! I haven't seen a ternary used like this.

Yes UB indeed, I just went with obfuscation mode. (-:

the i++ is undefined behavior

Ahh nice. I had pretty much the same idea for the solution, was short on sleep and too tired to implement. :D

6 is the length, the meaning of 5 would be less clear. With the length, it's like indexing a full array from the end with .at(-ir).

Clever!

Any reason for 6 + ~ir instead of 5 - ir ?

chars argument is a pointer to a constant characters i.e., you cannot modify the contents of address to which it points to but can modify what string it points to

.

:-)

Beautiful two katas, absolutely loved them. (:

you can use a letter the number of times it is in the second string.

Great kata, solved non-recursively!

I'm glad you like it :).

Loved the kata, I painstakingly wrote all the code and all green on the first attempt (:

P.S the kata is a bit harder than 6 kyu.

For sure. Author is cleaning dojo for a week for missing that.