Merge pull request #12848 from LubosKolouch/lubos/python-ch-1

Add Python solution for challenge 343 task 1

1 files changed, 52 insertions, 0 deletions

diff --git a/challenge-343/lubos-kolouch/python/ch-1.py b/challenge-343/lubos-kolouch/python/ch-1.py
new file mode 100644
index 0000000000..eb3f668ecf
--- /dev/null
+++ b/challenge-343/lubos-kolouch/python/ch-1.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+"""
+Perl Weekly Challenge: Task 1 - Zero Friend
+Find the number closest to zero and return its distance to zero.
+"""
+
+import unittest
+
+
+def zero_friend(nums: list[int]) -> int:
+    """
+    Find the distance to zero of the number closest to zero in the list.
+
+    Args:
+        nums (list[int]): List of integers.
+
+    Returns:
+        int: The absolute value (distance to zero) of the number closest to zero.
+             Returns 0 if the list is empty.
+    """
+    if not nums:
+        return 0
+
+    return min(abs(num) for num in nums)
+
+
+class TestZeroFriend(unittest.TestCase):
+    """Unit tests for the zero_friend function."""
+
+    def test_case_1(self):
+        """Test Case 1: (4, 2, -1, 3, -2) -> 1"""
+        self.assertEqual(zero_friend([4, 2, -1, 3, -2]), 1)
+
+    def test_case_2(self):
+        """Test Case 2: (-5, 5, -3, 3, -1, 1) -> 1"""
+        self.assertEqual(zero_friend([-5, 5, -3, 3, -1, 1]), 1)
+
+    def test_case_3(self):
+        """Test Case 3: (7, -3, 0, 2, -8) -> 0"""
+        self.assertEqual(zero_friend([7, -3, 0, 2, -8]), 0)
+
+    def test_case_4(self):
+        """Test Case 4: (-2, -5, -1, -8) -> 1"""
+        self.assertEqual(zero_friend([-2, -5, -1, -8]), 1)
+
+    def test_case_5(self):
+        """Test Case 5: (-2, 2, -4, 4, -1, 1) -> 1"""
+        self.assertEqual(zero_friend([-2, 2, -4, 4, -1, 1]), 1)
+
+
+if __name__ == '__main__':
+    unittest.main()