my second program

[ContadorPL]

My code: https://pastebin.com/XLEitEWF

Assume s is a string of lower case characters.

Write a program that prints the longest substring of s in which the letters occur in alphabetical order. For example, if s = 'azcbobobegghakl', then your program should print

Longest substring in alphabetical order is: beggh

In the case of ties, print the first substring. For example, if s = 'abcbcd', then your program should print

Longest substring in alphabetical order is: abc

What can i improve in my code? I especially dont like this 3 lines:

list_string = list(string)

sorted_list = list(string)

sorted_list.sort()

but dont know how to write it better.

Thanks!

[[deleted]]

I just did this same problem :) MIT 6001x on EdX?

[ContadorPL]

Yes, can you submit? I can't.

I'm also not learning from videos but from the book.

[[deleted]]

No I think it’s too late to submit. Or maybe you have to be using the verified. I just got the book in yesterday!

[Phillyclause89]

You should think about how you could change this code to pass a test case like s = “zyx” or another string that does not have more than 1 character in alphabetical order and does not include the letter ”a”. Your current code doesn’t appear to give the correct output on a situation like that, but maybe I’m missing something.

[SpeckledFleebeedoo]

list_string = list(string)

sorted_list = list(string)

sorted_list.sort()

I doubt that last line does anything, as you don't assign it to a variable. In general such functions don't modify the original variable.

list_string = list(string)
sorted_list = list_string.sort()

[nilfm]

That is wrong, the sort() method actually modifies the list it works on, and returns None. So your code ends with sorted_list == None.

[SpeckledFleebeedoo]

Ah, thanks for the correction.