This is exactly the reason I enjoy codewars katas so much. Learn something knew every day.

Oh, yes... I see...

but the return value will be retuned as an integer. it won't convert to a char. that's not what you want the function to do

blue_pulled and red_pulled are always lower than the blue_start and red_start (as per problem definition).

the concept is called a vacuous truth. the tests are correct

>> 1.0 / 0.0
inf
>> 0.0 / 0.0
NaN

according to evcxr, which is a rust REPL

lol i have the same problem like u bro
like i don't even know why best_friend("jtekeh dek wbwclw gykc", "i", "h") should return True, even the string have no "i"

The issue is your *= for x[loop5] . just do x[loop5] * 2 so it doesn't attempt to assign it to immutable x.

Same principle if you have a scaler multiple and a vector. Used a lot in 3d models and graphics.

What happens if all the red and blue have been pulled? IE: A denom of 0?

What happens here if total is 0?

Yeah

Since the return value of the function is char, you can simply replace char(i) with i.

Thank you for the fix. Cheers!