sgreen solutions to challenge 144

1 files changed, 37 insertions, 0 deletions

diff --git a/challenge-144/sgreen/python/ch-2.py b/challenge-144/sgreen/python/ch-2.py
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+++ b/challenge-144/sgreen/python/ch-2.py
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+#!/usr/bin/env python
+
+import math
+import sys
+
+
+def main(inputs):
+    m = int(inputs[0])
+    n = int(inputs[1])
+
+    if m < 1:
+        raise ValueError('The first number must be a positive integer')
+    if n < 1:
+        raise ValueError('The second number must be a positive integer')
+
+    # We know the first three values in the sequence are the two numbers and
+    # the sum
+    seq = [m, n, m + n]
+    current_value = seq[-1] + 1
+
+    while len(seq) < 10:
+        sums = 0
+        for i in range(m, math.ceil(current_value / 2)):
+            j = current_value - i
+            if i in seq and j in seq:
+                sums += 1
+
+        if sums == 1:
+            seq.append(current_value)
+
+        current_value += 1
+
+    print(*seq, sep=', ')
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])