LeetCode 2828: Check if a String Is an Acronym of Words Solution

Master LeetCode problem 2828 (Check if a String Is an Acronym of Words), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

2828. Check if a String Is an Acronym of Words

Easy

Array String

Problem Explanation

Explanation

To solve this problem, we iterate through each word in the words array and compare the first character of each word with the corresponding character in the string s. If all characters match, we return true; otherwise, we return false. We need to ensure that the lengths of words and s are the same.

Time Complexity: O(n), where n is the number of words in the words array.
Space Complexity: O(1)

Solution Code

class Solution {
    public boolean isAcronym(String[] words, String s) {
        if (words.length != s.length()) {
            return false;
        }
        
        for (int i = 0; i < words.length; i++) {
            if (words[i].charAt(0) != s.charAt(i)) {
                return false;
            }
        }
        
        return true;
    }
}

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