Update mergeSort.py

ShinCheung · web-flow · commit 68ed4e2c28da · 2018-11-07T14:56:03.000+08:00
diff --git a/algorithm/mergeSort.py b/algorithm/mergeSort.py
@@ -23,7 +23,7 @@ def mergeSort(alist):
         while j < len(righthalf):
             alist[k] = righthalf[j]
             j += 1
+    return alist
 
 alist = [54,26,93,17,77,31,44,55,20]
-mergeSort(alist)
-print(alist)
+print(mergeSort(alist))
