This is link to my submission 290115017

I saw other peoples code and they were using max and min function to update the start and end

i don't understand why my method fails at test case 2

I've been trying to find problem in my code but am not able to and everytime i get wrong answer at test case 7.

now i'm stuck. I don't know what i'm doing wrong please look at my submission.276320513 ignore the function findCharL and findCharR.