3 files changed, 99 insertions, 0 deletions
diff --git a/challenge-333/sgreen/python/ch-1.py b/challenge-333/sgreen/python/ch-1.py
new file mode 100755
index 0000000000..fa37695004
--- /dev/null
+++ b/challenge-333/sgreen/python/ch-1.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def straight_line(points: list[list[int]]) -> bool:
+    """
+    Check if all points lie on a straight line.
+
+    Args:
+        points (list[list[int]]): A list of points, where each point is represented as a list of two integers [x, y].
+
+    Returns:
+        bool: True if all points lie on a straight line, False otherwise.
+    """
+
+    # Check for a flat line (to avoid division by zero error)
+    if all(points[0][1] == points[i][1] for i in range(1, len(points))):
+        return True
+
+    # Check for only some points being a flat line
+    if any(points[0][1] == points[i][1] for i in range(1, len(points))):
+        return False
+
+    degrees = set(
+        abs((points[0][0] - points[i][0]) / (points[0][1] - points[i][1]))
+        for i in range(1, len(points))
+    )
+
+    return True if len(degrees) == 1 else False
+
+
+def main():
+    # Convert input into integers, and then into pairs of points
+    array = [int(n) for n in sys.argv[1:]]
+    points = [[array[i], array[i + 1]] for i in range(0, len(array), 2)]
+    result = straight_line(points)
+    print(result)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/challenge-333/sgreen/python/ch-2.py b/challenge-333/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..f0662513ed
--- /dev/null
+++ b/challenge-333/sgreen/python/ch-2.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def duplicate_zeros(ints: list) -> list:
+    solution = []
+    for i in ints:
+        if i == 0:
+            # Duplicate the zero
+            solution.append(0)
+        solution.append(i)
+
+    return solution[:len(ints)]
+
+
+def main():
+    # Convert input into integers
+    array = [int(n) for n in sys.argv[1:]]
+    result = duplicate_zeros(array)
+    print(result)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/challenge-333/sgreen/python/test.py b/challenge-333/sgreen/python/test.py
new file mode 100755
index 0000000000..be4233ee2b
--- /dev/null
+++ b/challenge-333/sgreen/python/test.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+import unittest
+ch_1 = __import__('ch-1')
+ch_2 = __import__('ch-2')
+
+
+class TestClass(unittest.TestCase):
+    def test_ch_1(self):
+        self.assertTrue(ch_1.straight_line([[2, 1], [2, 3], [2, 5]]))
+        self.assertTrue(ch_1.straight_line([[1, 4], [3, 4], [10, 4]]))
+        self.assertFalse(ch_1.straight_line([[0, 0], [1, 1], [2, 3]]))
+        self.assertTrue(ch_1.straight_line([[1, 1], [1, 1], [1, 1]]))
+        self.assertTrue(
+            ch_1.straight_line(
+                [[1000000, 1000000], [2000000, 2000000], [3000000, 3000000]]
+            )
+        )
+
+    def test_ch_2(self):
+        self.assertEqual(
+            ch_2.duplicate_zeros([1, 0, 2, 3, 0, 4, 5, 0]),
+            [1, 0, 0, 2, 3, 0, 0, 4]
+        )
+        self.assertEqual(ch_2.duplicate_zeros([1, 2, 3]), [1, 2, 3])
+        self.assertEqual(ch_2.duplicate_zeros([1, 2, 3, 0]), [1, 2, 3, 0])
+        self.assertEqual(ch_2.duplicate_zeros([0, 0, 1, 2]), [0, 0, 0, 0])
+        self.assertEqual(ch_2.duplicate_zeros([1, 2, 0, 3, 4]), [1, 2, 0, 0, 3])
+
+
+if __name__ == '__main__':
+    unittest.main()