cycle sort in python.

Cycle_Sort.py

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+# Python program to implement cycle sort
+
+def cycleSort(array):
+writes = 0
+
+# Loop through the array to find cycles to rotate.
+for cycleStart in range(0, len(array) - 1):
+	item = array[cycleStart]
+
+	# Find where to put the item.
+	pos = cycleStart
+	for i in range(cycleStart + 1, len(array)):
+	if array[i] < item:
+		pos += 1
+
+	# If the item is already there, this is not a cycle.
+	if pos == cycleStart:
+	continue
+
+	# Otherwise, put the item there or right after any duplicates.
+	while item == array[pos]:
+	pos += 1
+	array[pos], item = item, array[pos]
+	writes += 1
+
+	# Rotate the rest of the cycle.
+	while pos != cycleStart:
+
+	# Find where to put the item.
+	pos = cycleStart
+	for i in range(cycleStart + 1, len(array)):
+		if array[i] < item:
+		pos += 1
+
+	# Put the item there or right after any duplicates.
+	while item == array[pos]:
+		pos += 1
+	array[pos], item = item, array[pos]
+	writes += 1
+
+return writes
+
+# driver code
+arr = [1, 8, 3, 9, 10, 10, 2, 4 ]
+n = len(arr)
+cycleSort(arr)
+
+print("After sort : ")
+for i in range(0, n) :
+	print(arr[i], end = \' \')
+
+