Merge pull request #6394 from waltman/branch-for-challenge-172

Branch for challenge 172

1 files changed, 26 insertions, 0 deletions

diff --git a/challenge-172/walt-mankowski/python/ch-2.py b/challenge-172/walt-mankowski/python/ch-2.py
new file mode 100644
index 0000000000..c1b356d5f3
--- /dev/null
+++ b/challenge-172/walt-mankowski/python/ch-2.py
@@ -0,0 +1,26 @@
+import sys
+
+# returns the median of a sorted list
+def median_sorted(a):
+    len2 = len(a) // 2
+    return a[len2] if len(a) % 2 == 1 else (a[len2-1] + a[len2]) / 2
+
+# returns the 5 number summary of a list: minimum, lower quartile,
+# median, upper quartile, maximum
+def fivenum(a):
+    _sorted = sorted(a)
+    _min = _sorted[0]
+    _max = _sorted[-1]
+    _median = median_sorted(_sorted)
+
+    len2 = len(a) // 2
+    _lower = median_sorted(_sorted[0:len2])
+    if len(a) % 2 == 1: # odd number of elements
+        _upper = median_sorted(_sorted[len2+1:])
+    else:
+        _upper = median_sorted(_sorted[len2:])
+
+    return _min, _lower, _median, _upper, _max
+
+a = [int(x) for x in sys.argv[1:]]
+print(fivenum(a))