Add brain-gcd

Author: BiscayN

README.md

@@ -9,4 +9,7 @@
 [![asciicast](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc.svg)](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc)
 
 ### Brain-Calc Test:
-[![asciicast](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi.svg)](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi)
+[![asciicast](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi.svg)](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi)
+
+### Brain-Gcd Test:
+[![asciicast](https://asciinema.org/a/Sx9fBpsgZRe3CRAhZfg5HmU8Y.svg)](https://asciinema.org/a/Sx9fBpsgZRe3CRAhZfg5HmU8Y)

brain_games/scripts/brain_gcd.py

@@ -0,0 +1,32 @@
+from random import randint
+from sys import exit
+from prompt import string
+from math import gcd
+
+QUESTION = 'Find the greatest common divisor of given numbers.'
+
+
+def get_numbers():
+    num1, num2 = randint(1, 50), randint(1, 50)
+    return num1, num2
+
+
+def main():
+    print('Welcome to the Brain Games!')
+    name = string('May I have your name? ')
+    print(f'Hello, {name}!')
+    print(QUESTION)
+    counter = 0
+    while counter < 3:
+        num1, num2 = get_numbers()
+        print(f'Question: {num1} {num2}')
+        user_answer = string('Your answer: ')
+        if user_answer == str(gcd(num1, num2)):
+            print('Correct!')
+        else:
+            print(f"'{user_answer}' is wrong answer ;(. Correct answer was '{gcd(num1, num2)}'.")
+            print(f"Let's try again, {name}!")
+            exit(0)
+        counter += 1
+    print(f'Congratulations, {name}!')
+    exit(0)

pyproject.toml

@@ -16,6 +16,7 @@ prompt = "^0.4.1"
 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"
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^7.1.1"