LeetCode 192: Word Frequency Solution
Master LeetCode problem 192 (Word Frequency), a medium 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.
192. Word Frequency
Problem Explanation
Explanation
To solve this problem, we can use Unix commands like cat, tr, sed, sort, uniq, and awk in a pipeline to count the frequency of each word in the text file. Here's a step-by-step approach:
cat words.txt: Display the contents of the text file.tr ' ' '\n': Replace spaces with newlines to split the words.sed '/^$/d': Remove empty lines.sort: Sort the words.uniq -c: Count the frequency of each unique word.sort -nr: Sort based on frequency in descending order.awk '{print $2, $1}': Print the word and its frequency.
Solution Code
// Java solution not applicable as the problem is specifically for bash scripting.Try It Yourself
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