Practice Word Frequency

Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.

Medium#192

LeetCode Problem

Word Frequency

Shell

Problem Statement

Read words.txt with a Bash script and print each word followed by its frequency, highest frequency first. Words contain lowercase English letters and are separated by whitespace. Every word has a different frequency, so no tie rule is needed. Practice approach: Normalize whitespace into one word per line, discard empty tokens, sort words, count equal adjacent words, then sort numerically by count descending and print word before count. A counting map in awk also works. Test repeated spaces and line breaks; counting lines alone does not count words.

Source: Word Frequency on LeetCode. Use the original task for its coding environment and submissions.

Examples

# Example 1

Input

red  blue red
red green blue

Output

red 3
blue 2
green 1

Explanation

red occurs three times, blue twice, and green once across both lines.

Constraints

Words contain lowercase letters.

Words are separated by one or more whitespace characters.

Distinct words have distinct frequencies.

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