Monty Hall Problem Demo

#!/usr/bin/env python

"""
an demostration of Monty Hall problem
"""

import random
import sys

def main():
  COUNT = int(sys.argv[1])
  success_count_of_switch = 0
  success_count_not_switch = 0
  time_count = 0
  while(time_count < COUNT):
    # DOOR
    DOOR = ["A", "B", "C"]
    # only one DOOR cover the CAR
    result = random.choice(DOOR)
    print("")
    print("hidden result is: ", result)

    # player make a first choice
    my_first_choice = random.choice(DOOR)
    print("my first choice is: ", my_first_choice)

    # round 1, reveal a DOOR that cover a goat
    reveal1 = random.choice(DOOR)
    # make sure that reveal is not the door cover a car and not my_first_choice
    while((reveal1 == result) or (reveal1 == my_first_choice)):
      reveal1 = random.choice(DOOR)
    print("first reveal: ", reveal1)
    # now DOOR will be subjected 
    DOOR.remove(reveal1)

    # player must switch the choice
    my_second_choice = random.choice(DOOR)
    # make sure that player switch to another DOOR
    while(my_second_choice == my_first_choice):
      my_second_choice = random.choice(DOOR)
    print("my second choice is: ", my_second_choice)

    if (my_second_choice == result):
      print("Switch is CORRECT decision!")
      success_count_of_switch += 1
    elif (my_first_choice == result):
      print("Switch is wrong decision!")
      success_count_not_switch += 1

    time_count += 1

  print("Success percentage of second choice: %d / %d" % (success_count_of_switch, time_count))
  print("Success percentage of first choice : %d / %d" % (success_count_not_switch, time_count))

if __name__ == '__main__':
    main()

#!/usr/bin/env python

"""
an demostration of Monty Hall problem
"""

import random
import sys

def main():
  COUNT = int(sys.argv[1])
  success_count_of_switch = 0
  success_count_not_switch = 0
  time_count = 0
  while(time_count < COUNT):
    # DOOR
    DOOR = ["A", "B", "C", "D"]
    # only one DOOR cover the CAR
    result = random.choice(DOOR)
    print("")
    print("hidden result is: ", result)

    # player make a first choice
    my_first_choice = random.choice(DOOR)
    print("my first choice is: ", my_first_choice)

    # round 1, reveal a DOOR that cover a goat
    reveal1 = random.choice(DOOR)
    # make sure that reveal is not the door cover a car and not my_first_choice
    while((reveal1 == result) or (reveal1 == my_first_choice)):
      reveal1 = random.choice(DOOR)
    print("first reveal: ", reveal1)
    # now DOOR will be subjected 
    DOOR.remove(reveal1)

    # round 2, reveal a DOOR that cover a goat
    reveal2 = random.choice(DOOR)
    # make sure that reveal is not the door cover a car and not my_first_choice
    while((reveal2 == result) or (reveal2 == my_first_choice)):
      reveal2 = random.choice(DOOR)
    print("second reveal: ", reveal2)
    # now DOOR will be subjected 
    DOOR.remove(reveal2)

    # player must switch the choice
    my_second_choice = random.choice(DOOR)
    # make sure that player switch to another DOOR
    while(my_second_choice == my_first_choice):
      my_second_choice = random.choice(DOOR)
    print("my second choice is: ", my_second_choice)

    if (my_second_choice == result):
      print("Switch is CORRECT decision!")
      success_count_of_switch += 1
    elif (my_first_choice == result):
      print("Switch is wrong decision!")
      success_count_not_switch += 1

    time_count += 1

  print("Success percentage of second choice: %d / %d" % (success_count_of_switch, time_count))
  print("Success percentage of first choice : %d / %d" % (success_count_not_switch, time_count))

if __name__ == '__main__':
    main()

#!/usr/bin/env python

"""
an demostration of Monty Hall problem
"""

import random
import sys

def main():
  COUNT = int(sys.argv[1])
  success_count_of_switch = 0
  success_count_not_switch = 0
  time_count = 0
  while(time_count < COUNT):
    # DOOR
    DOOR = ["A", "B", "C", "D"]
    # only one DOOR cover the CAR
    result = random.choice(DOOR)
    print("")
    print("hidden result is: ", result)

    # player make a first choice
    my_first_choice = random.choice(DOOR)
    print("my first choice is: ", my_first_choice)

    # round 1, reveal a DOOR that cover a goat
    reveal1 = random.choice(DOOR)
    # make sure that reveal is not the door cover a car
    while(reveal1 == result):
      reveal1 = random.choice(DOOR)
    print("first reveal: ", reveal1)
    # now DOOR will be subjected 
    DOOR.remove(reveal1)

    # round 2, reveal a DOOR that cover a goat
    reveal2 = random.choice(DOOR)
    # make sure that reveal is not the door cover a car
    while(reveal2 == result):
      reveal2 = random.choice(DOOR)
    print("second reveal: ", reveal2)
    # now DOOR will be subjected 
    DOOR.remove(reveal2)

    # player must switch the choice
    my_second_choice = random.choice(DOOR)
    # make sure that player switch to another DOOR
    while(my_second_choice == my_first_choice):
      my_second_choice = random.choice(DOOR)
    print("my second choice is: ", my_second_choice)

    if (my_second_choice == result):
      print("Switch is CORRECT decision!")
      success_count_of_switch += 1
    elif (my_first_choice == result):
      print("Switch is wrong decision!")
      success_count_not_switch += 1

    time_count += 1

  print("Success percentage of second choice: %d / %d" % (success_count_of_switch, time_count))
  print("Success percentage of first choice : %d / %d" % (success_count_not_switch, time_count))

if __name__ == '__main__':
    main()