Merge pull request #10077 from simongreen-net/master

sgreen solutions to challenge 268

1 files changed, 29 insertions, 0 deletions

diff --git a/challenge-268/sgreen/python/ch-2.py b/challenge-268/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..d0abc6522c
--- /dev/null
+++ b/challenge-268/sgreen/python/ch-2.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def numbers_game(ints: list) -> list:
+    # Check we have an even number of items
+    if len(ints) % 2 != 0:
+        raise ValueError('Please provide an even number of items!')
+
+    # Sort the list
+    ints = sorted(ints)
+
+    for i in range(0, len(ints), 2):
+        # Switch the pairs of numbers around
+        ints[i], ints[i+1], = ints[i+1], ints[i]
+
+    return ints
+
+
+def main():
+    # Convert input into integers
+    array = [int(n) for n in sys.argv[1:]]
+    result = numbers_game(array)
+    print(tuple(result))
+
+
+if __name__ == '__main__':
+    main()