sgreen solutions to challenge 172

1 files changed, 34 insertions, 0 deletions

diff --git a/challenge-172/sgreen/python/ch-2.py b/challenge-172/sgreen/python/ch-2.py
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+++ b/challenge-172/sgreen/python/ch-2.py
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+#!/usr/bin/env python
+
+import sys
+
+
+def get_value(l, quart):
+    # Calculate the position of the value we require
+    pos = (len(l)-1) * quart / 100
+    i = int(pos)
+
+    if i == pos:
+        # It is a single value
+        return l[i]
+
+    # We need the average of two numbers
+    val = (l[i] + l[i+1]) / 2
+    return int(val) if int(val) == val else val
+
+
+def main(l):
+
+    # Sort the list
+    l = sorted([int(x) for x in l])
+    solution = []
+
+    # Calculate the five values
+    for quart in range(0, 101, 25):
+        solution.append(get_value(l, quart))
+
+    print(*solution, sep=', ')
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])