sgreen solutions to challenge 282

1 files changed, 32 insertions, 0 deletions

diff --git a/challenge-282/sgreen/python/ch-2.py b/challenge-282/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..4673e3aef7
--- /dev/null
+++ b/challenge-282/sgreen/python/ch-2.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def key_changes(s: str) -> int:
+    # Convert the string to lower case
+    s = s.lower()
+
+    # Start with the first letter
+    current_key = s[0]
+
+    # Count the number of times we change keys
+    changes = 0
+
+    for letter in s:
+        if letter != current_key:
+            # We need to change key
+            current_key = letter
+            changes += 1
+
+    return changes
+
+
+def main():
+    # Convert input into integers
+    result = key_changes(sys.argv[1])
+    print(result)
+
+
+if __name__ == '__main__':
+    main()