+ 2

count palindrome string

The palindromic score of a string is the number of errors(characters which do not match) when the string is read forwards and backwards. For example, the palindromic score of ‘fox’ is 2, because ‘fox’ and ‘xof’ differ by two characters. Write a function to take a string and return its palindromic score. //output aa=0 aabb=0 aaabbb=6 abcde=5 // please write return statement

26th Apr 2021, 6:47 AM
Pavan priya
6 Réponses
+ 3
1. You didn't tag a language 2. Your output explanation doesn't make sense when compared to the description of the problem. aabb = 0? Wouldn't this be 4 and abcde = 5? Then how is fox 2 and not 3 3. Where is your attempt at solving the problem? Try it yourself first and post your code if you can't figure it out. Hint: Take the original string and a reversed copy of the string and loop over the characters comparing them to each other, increment a counter when they differ.
26th Apr 2021, 7:16 AM
ChaoticDawg
0
sum([ 0 if a==b else 1 for a, b in zip(word,word[::-1]) ])
26th Apr 2021, 7:36 AM
Oma Falk
0
Jan Markus a kind of counter should be better
26th Apr 2021, 7:42 AM
Oma Falk
0
Frogged You actually only need to go over the first half of the strings if you increment by 2 😉
26th Apr 2021, 7:50 AM
ChaoticDawg
0
ChaoticDawg perfect!
26th Apr 2021, 8:44 AM
Oma Falk
0
Where I could find the answers for this
24th Aug 2021, 4:19 PM
hima bindu
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