sgreen solutions to challenge 153

1 files changed, 17 insertions, 0 deletions

diff --git a/challenge-153/sgreen/python/ch-2.py b/challenge-153/sgreen/python/ch-2.py
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+++ b/challenge-153/sgreen/python/ch-2.py
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+#!/usr/bin/env python
+
+import math
+import sys
+
+def main(n):
+    # Check we have an integer >= 0
+    num = int(n)
+    if num < 0:
+        raise ValueError("You must specify a non-negative integer")
+
+    # Get the sum of factorials of each digit
+    s = sum(math.factorial(int(x)) for x in n)
+    print('1' if s == num else 0)
+
+if __name__ ==  '__main__':
+    main(sys.argv[1])
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