Count Frequency With A Dict

Write count_frequency(words: list[str]) -> dict[str, int] that returns a dictionary mapping each distinct word to how many times it appears. Loop over the words once: when the word is already a key, add one to its value, otherwise create the key with a value of 1. Do NOT write a main block or any top-level test code; the tests construct the calls. Input: one line of space-separated words; the tests print each word and its count on one line, separated by a space, in alphabetical order of the words.

Expected Output:

blue 2↵
green 1↵
red 3↵

= newline. The output ends with a newline — print one after the last line.

Hints3 available

Topics:

Data Structures & Algorithms

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