Merge pull request #4731 from stuart-little/stuart-little_126_python

1st commit on 126_python

1 files changed, 14 insertions, 0 deletions

diff --git a/challenge-126/stuart-little/python/ch-1.py b/challenge-126/stuart-little/python/ch-1.py
new file mode 100755
index 0000000000..aea89f2b33
--- /dev/null
+++ b/challenge-126/stuart-little/python/ch-1.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+# run <script> <number>
+
+import sys
+
+def no1(nr):
+    if len(nr)==0:
+        return 0
+    if nr[0] == '1':
+        return 9**(len(nr)-1)
+    return (int(nr[0])-1) * 9**(len(nr)-1) + no1(nr[1:])
+
+print(no1(sys.argv[1]) if '1' not in sys.argv[1] else (no1(sys.argv[1])-1))