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-rw-r--r--comparison/Python/qsort-800000.py34
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+# Quicksort
+import random
+
+# https://stackoverflow.com/questions/23767787/python-implementation-of-quicksort-fails-to-sort-the-entire-array
+def quickSort(arr):
+ less = []
+ pivotList = []
+ more = []
+ if len(arr) <= 1:
+ return arr
+ else:
+ pivot = arr[0]
+ for i in arr:
+ if i < pivot:
+ less.append(i)
+ elif i > pivot:
+ more.append(i)
+ else:
+ pivotList.append(i)
+
+ less = quickSort(less)
+ more = quickSort(more)
+ return less + pivotList + more
+
+def mkRandList ( n ):
+ a=[]
+ for i in range(1,n+1):
+ a.insert(0, random.randint(0,10000))
+ return a
+
+a = mkRandList(800000)
+#a = mkRandList(8)
+b = quickSort(a)
+#print(a)