In English, we have a concept called root, which can be followed by some other words to form another longer word - let's call this word ...
Given a list ofwords, list of singleletters might be repeating andscoreof every character. Return the maximum score ofanyvalid set of words formed by using the given letters words i cannot be used tw ...
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In English, we have a concept called root, which can be followed by some other words to form another longer word - let's call this word ...
Given a list of words (without duplicates), please write a program that returns all concatenated words in the given list of words. A concatenated ...
Given a set of keywords words and a string S, make all appearances of all keywords in S bold. Any letters between <b> and </b> tags ...
International Morse Code defines a standard encoding where each letter is mapped to a series of d ...
Sometimes people repeat letters to represent extra feeling, such as "hello" -> "heeellooo", "hi" -> "hiiii". Here, we have groups ...
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue ...
Given a list of words, we may encode it by writing a reference string S and a list of indexes A. For example, if the list of words is ["time ...
Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. For example, Hint ...