Fun Time! Lets see how best you are, in knowing palindromes

Question

Input a word to Check.
And of course, a like 😝😝
https://code.sololearn.com/c8Q1ERkWlTy1/?ref=app

Answer 1

What Kuba said.

If Word is "lever", Word[::-1] is "revel".

If Word is "level", Word[::-1] is also "level",
i.e. Word is a palindrome.

The '*' means multiply.
You can multiply strings, so:
2 * " not" gives you " not not"
1 * " not" gives you " not"
0 * " not" gives you ""

The other thing to remember is that the value of True is 1 and the value of False is 0.

a != b is the statement 'a is not equal to b'.

if a is a string, e.g. "lever" and b is the same string but backwards, i.e. "revel", then a != b is always True EXCEPT when the word written backwards is the same as the word written forwards, i.e. a palindrome.

so if Word = "level",
Word != Word[::-1] is False, i.e. 0.

0 * " not" takes the "not" out of the sentence, leaving ..."is a palindrome"

if Word = "lever",
Word != Word[::-1] is True, i.e. 1.

1 * " not" leaves the "not" in the sentence, giving ..."is not a palindrome"

BTW if you want to know more about string slices, you can check out http://pythoncentral.io/how-to-get-a-substring-from-a-string-in-JUMP_LINK__&&__python__&&__JUMP_LINK-slicing-strings

Answer 2

Try using no if ;)

https://code.sololearn.com/cR4DVjNP4rXd/?ref=app

Answer 3

impressive!

Answer 4

@David Wow, what a comprehensive explanation 👏😉

Answer 5

[::-1] makes the list or a string to be iterated backwards (literally from end to beginning with a step of -1)

Answer 6

@Kuba Yeah I got started and couldn't stop. This stuff is addictive! 🙃

Answer 7

Yep, thanks for helping him understand.
Wasn't around.
[::-1] simply reverses the string

Answer 8

[::-1])*
what's the role of this statement in your coding

Answer 9

sir kuba [::-1])* what is the role of this statement

Answer 10

More examples on Python substring

http://net-informations.com/python/basics/substring.htm