Date: 2026-06-06
Time: 16:56
goat-latin/solution.pyThis file is a self-contained LeetCode solution for problem 824: Goat Latin. It owns the transformation logic and its own test suite — the single function togoatlatin is the entire public API.
togoatlatin(sentence: str) -> str — Applies three rules to each word in the sentence:
1. If a word starts with a vowel (case-insensitive), append "ma".
2. If it starts with a consonant, move the first character to the end, then append "ma".
3. Append one "a" per the word's 1-based position index.
The vowel set is "aeiouAEIOU" — stored as a set for O(1) membership testing.
TestToGoatLatin — 8 unit tests covering both LeetCode examples, single-word inputs, single-character edge cases, and all-vowel-start sentences.
solution.py with the function and inline unittest cases, plus a separate test_solution.py that imports from it.enumerate(sentence.split(), 1) gives a 1-based index directly, which maps cleanly to the "append i copies of 'a'" rule without an off-by-one adjustment.+ operators. Fine here — the pieces per word are constant (at most 4 concatenations).Imports: Only unittest from stdlib. No external or project-internal dependencies.
Imported by: The massive importedby list is misleading — those are testsolution.py files across *other* problems that happen to share a test runner or import pattern. The real direct consumer is goat-latin/test_solution.py.
1. Split sentence on whitespace into words.
2. For each word at 1-based index i:
word[0] is in the vowel set.word + "ma" + "a" * iword[1:] + word[0] + "ma" + "a" * i3. Join transformed words with spaces.
Data transformation: str → list[str] → str. Single pass, no intermediate data structures beyond the result list.
word[0] is accessed without a guard. The problem guarantees the sentence contains only letters and spaces with no leading/trailing spaces and no double spaces, so this is safe within the problem's contract.word[0], not word[0].lower()). This matches the problem spec.enumerate(..., 1) ensures the first word gets "a", the second "aa", etc.None. The function trusts its input matches the LeetCode constraints (non-empty sentence of English letters and single spaces). Passing an empty string would produce an empty string; passing a word with no characters would raise an IndexError on word[0].
goat-latin/testsolution.py — The external test file that imports togoat_latin; likely has additional or differently structured test casesgoat-latin/review.md — Code review notes for this solution — may document alternative approaches or complexity analysisreverse-only-letters/solution.py:reverseOnlyLetters — Another string-manipulation problem that uses a different traversal strategy (two pointers vs. linear scan)vowel-consonant-classification — Several solutions in this repo deal with vowel detection (reverse-vowels-of-a-string, count-vowel-substrings-of-a-string); compare how the vowel set is defined and reusedgoat-latin/plan.md — The planning doc for this solution; shows the problem decomposition approach before implementationgoat-latin-vowel-check-is-case-insensitive — The vowel set includes both upper and lowercase variants, so word[0] in vowels works regardless of the word's casinggoat-latin-index-is-1-based — enumerate(sentence.split(), 1) produces 1-based indices, meaning the first word gets exactly one trailing "a"goat-latin-consonant-rotation-preserves-case — When moving a consonant to the end of a word, the original casing of that character is preserved (no .lower() or .upper() call)goat-latin-assumes-nonempty-words — The function accesses word[0] without a length check, relying on the LeetCode guarantee that the input contains no empty tokens