5 ms·
Won't that give you the letters in alphabetical order, which may not be correct? See example 2 on the problem page.
by jfk13 7y ago
Won't that give you the letters in alphabetical order, which may not be correct? See example 2 on the problem page.
- krn 7y ago> Won't that give you the letters in alphabetical order, which may not be correct? But that's what "lexicographical" means? > In mathematics, the lexicographical order is a generalization of the way words are alphabetically ordered based on the alphabetical order of their component letters. > This generalization consists primarily in defining a total order on the sequences (often called strings in computer science) of elements of a finite totally ordered set, often called an alphabet. https://en.wikipedia.org/wiki/Lexicographical_order https://en.wikipedia.org/wiki/Lexicographical_order
- Twisol 7y agoI think the problem statement wants the lexicographically least string of those obtainable by deleting characters.