add: brain_gcd.py and gcd.py

Author: ZLOI27

Makefile

@@ -18,7 +18,9 @@ lint:
 	uv run ruff check brain_games/scripts/brain_games.py
 	uv run ruff check brain_games/scripts/brain_even.py
 	uv run ruff check brain_games/scripts/brain_calc.py
+	uv run ruff check brain_games/scripts/brain_gcd.py
 	uv run ruff check brain_games/games/even.py
 	uv run ruff check brain_games/games/calc.py
+	uv run ruff check brain_games/games/gcd.py
 	uv run ruff check brain_games/utils.py
 	uv run ruff check brain_games/engine.py

brain_games/games/gcd.py

@@ -0,0 +1,30 @@
+import random
+
+from brain_games.utils import ask_answer
+
+
+def get_answer_and_right_answer(expression: str) -> tuple:
+    answer = ask_answer()
+    right_answer = get_right_answer(expression)
+    return (answer, right_answer)
+
+
+def get_question_msg() -> str:
+    left_num = random.randint(0, 100)
+    right_num = random.randint(0, 100)
+    return f"{left_num} {right_num}"
+
+
+def get_right_answer(expression: str) -> str:
+    left_num, right_num = expression.split()
+    left_num = int(left_num)
+    right_num = int(right_num)
+    while right_num != 0:
+        mod = left_num % right_num
+        left_num = right_num
+        right_num = mod
+    return str(left_num)
+
+
+def get_msg_game_rules() -> str:
+    return "Find the greatest common divisor of given numbers."

brain_games/scripts/brain_gcd.py

@@ -0,0 +1,10 @@
+from brain_games import engine
+from brain_games.games import gcd
+
+
+def main() -> None:
+    engine.engine_run(gcd)
+
+
+if __name__ == '__main__':
+    main()

pyproject.toml

@@ -24,3 +24,4 @@ dev = [
 brain-games = "brain_games.scripts.brain_games:main"
 brain-even = "brain_games.scripts.brain_even:main"
 brain-calc = "brain_games.scripts.brain_calc:main"
+brain-gcd = "brain_games.scripts.brain_gcd:main"