+ ‘MontyHall.py’

Author: lazToum

MontyHall.py

@@ -0,0 +1,29 @@
+#!/usr/bin/ python2
+import random
+curtains = ['A','B','C']
+NumOfWinsIfKeep = 0
+NumOfWinsIfChange = 0
+#10000 Tests to convince us
+for x in range (0,10000):
+	# phase 1
+	Ferrari = random.choice(curtains)
+	PlayerChoice = random.choice(curtains)
+	#host will not open the player's choice on the phase two
+	curtains.remove(PlayerChoice)
+	# ... or the Ferrari....
+	Discard = random.choice(curtains)
+	while Discard == Ferrari:
+		Discard = random.choice(curtains)
+	#open one curtain:
+	curtains.remove(Discard)
+	#phase two
+	RemainingCurtain = curtains[0]
+	if RemainingCurtain == Ferrari:
+		# if the player changes his choice, he wins
+		NumOfWinsIfChange += 1
+	else :
+		# if the player keeps his choice, he wins
+		NumOfWinsIfKeep += 1
+	#repeat
+	curtains = ['A','B','C']
+print 'In 10000 Tests: \nIf player keeps his choice, he wins '+str(NumOfWinsIfKeep) + ' times('+str(float(NumOfWinsIfKeep)/float(100))+'%)\nIf he changes his option he wins: '+ str(NumOfWinsIfChange)+' times('+str(float(NumOfWinsIfChange)/float(100))+'%)'