{ "data": { "question": { "questionId": "2977", "questionFrontendId": "2828", "boundTopicId": null, "title": "Check if a String Is an Acronym of Words", "titleSlug": "check-if-a-string-is-an-acronym-of-words", "content": "

Given an array of strings words and a string s, determine if s is an acronym of words.

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The string s is considered an acronym of words if it can be formed by concatenating the first character of each string in words in order. For example, "ab" can be formed from ["apple", "banana"], but it can't be formed from ["bear", "aardvark"].

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Return true if s is an acronym of words, and false otherwise.

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Example 1:

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\nInput: words = ["alice","bob","charlie"], s = "abc"\nOutput: true\nExplanation: The first character in the words "alice", "bob", and "charlie" are 'a', 'b', and 'c', respectively. Hence, s = "abc" is the acronym. \n
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Example 2:

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\nInput: words = ["an","apple"], s = "a"\nOutput: false\nExplanation: The first character in the words "an" and "apple" are 'a' and 'a', respectively. \nThe acronym formed by concatenating these characters is "aa". \nHence, s = "a" is not the acronym.\n
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Example 3:

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\nInput: words = ["never","gonna","give","up","on","you"], s = "ngguoy"\nOutput: true\nExplanation: By concatenating the first character of the words in the array, we get the string "ngguoy". \nHence, s = "ngguoy" is the acronym.\n
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Constraints:

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Concatenate the first characters of the strings in words, and compare the resulting concatenation to s.
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