Top K Frequent Words in a File

Given a file with multiple words, implement a function to return the top K frequent words. Each line of the file contains several words separated by spaces. You need to: Analyze the frequency of these words. Return the top K frequent words in descending order by frequency; if frequencies are the same, return them in lexicographical order. Input An integer K, indicating the number of top frequent words to return. A file where each line contains several words. Output A list of the top K frequent words. Example File content: hello world hello leetcode leetcode hello Input: K = 2 Output: ["hello", "leetcode"] Example Input 2 hello world hello leetcode leetcode hello