#!/usr/bin/env python
# coding: utf-8

# # Chapter 05 Conditionals and Control Flow
# <img align="left" src="https://i.imgur.com/lnc0qMV.png" />

# In[1]:


# 01 흐름(flow)를 따라가세요

def clinic():
    print ("You've just entered the clinic!")
    print ("Do you take the door on the left or the right?")
    answer = input("Type left or right and hit 'Enter'.").lower()
    if answer == "left" or answer == "l":
        print ("This is the Verbal Abuse Room, you heap of parrot droppings!")
    elif answer == "right" or answer == "r":
        print ("Of course this is the Argument Room, I've told you that already!")
    else:
        print ("You didn't pick left or right! Try again.")
        clinic()

clinic()


# In[2]:


17 < (118 %100)


# In[3]:


# 02 자세히 비교하기!

bool_one = 17 < (118 %100)
print(bool_one)

bool_two = 100 == ((33 * 3) + 1)
print(bool_two)

bool_three = 19 <= 2 ** 4
print(bool_three)

bool_four = -22 >= -18
print(bool_four)

bool_five = 99 != 98 + 1
print(bool_five)


# In[4]:


# 03 더 자세히 비교하기!

bool_one = 20 + -10 * 2 > 10 % 3 % 2

bool_two = (10 + 17)**2 == 3**6

bool_three = 1**2**3 <= -(-(-1))

bool_four = 40 / 20 * 4 >= -4**2

bool_five = 100**0.5 != 6 + 4


# In[5]:


# 04 불린 연산자(Boolean Operators)

# Make me true!
bool_one = 1 > 0

# Make me false!
bool_two = 2 > 3

# Make me true!
bool_three = 1 == 1

# Make me false!
bool_four = 2 != 2

# Make me true!
bool_five = 2 == 2


# 05 같거나(And), 또는(Or) 반대(Not)이거나
# 
# Boolean Operators
# 
# ### and
# 
# A | B | 결과
# -- | -- | --
# True | True | True
# True |  False | False
# False | True | False
# False | False | False
# 
# ### or
# A | B | 결과
# -- | -- | --
# True | True | True
# True |  False | True
# False | True | True
# False | False | False
# 
# ### not
# A | 결과
# -- | --
# Not | False
# Not | True

# In[6]:


# 06 And 연산자

bool_one = False and False

bool_two = -(-(-(-2))) == -2 and 4 >= 16**0.5

bool_three = 19 % 4 != 300 / 10 / 10 and False

bool_four = -(1**2) < 2**0 and 10 % 10 <= 20 - 10 * 2

bool_five = True and True


# In[7]:


# 07 Or 연산자

bool_one = 2**3 == 108 % 100 or 'Cleese' == 'King Arthur'

bool_two = True or False

bool_three = 100**0.5 >= 50 or False

bool_four = True or True

bool_five = 1**100 == 100**1 or 3 * 2 * 1 != 3 + 2 + 1


# In[8]:


# 08 Not 연산자

bool_one = False

bool_two = True

bool_three = True

bool_four = True

bool_five = False


# In[9]:


# 09 This and That or This But Not That

bool_one = False or not True and True
print(bool_one)

bool_two = False and not True or True
print(bool_two)

bool_three = True and not (False or False)

bool_four = not not True or False and not True

bool_five = False or not (True and True)


# In[10]:


# 10 Mix n Match

# Make me false!
bool_one = not True

# Make me true!
bool_two = True and True

# Make me false!
bool_three = False or False

# Make me true!
bool_four = not False

# Make me true!
bool_five = not False


# In[11]:


# 11 조건문(Conditional Statement)의 문법

response = "Y"

answer = "Left"
if answer == "Left":
    print ("This is the Verbal Abuse Room, you heap of parrot droppings!")


# In[12]:


# 12 만약(if) 여러분이...

def using_control_once():
    if 1 == 1:
        return ("Success #1")

def using_control_again():
    if not False:
        return ("Success #2")

print (using_control_once())
print (using_control_again())


# In[13]:


# 13 그 외에(else) 문제가 있다면, 유감입니다…

answer = "'Tis but a scratch!"

def black_knight():
    if answer == "'Tis but a scratch!":
        return True
    else:
        return False       # Make sure this returns False

def french_soldier():
    if answer == "Go away, or I shall taunt you a second time!":
        return True
    else:
        return False       # Make sure this returns False
        
print( black_knight() )
print( french_soldier() )


# In[14]:


# 14 수많은 문제가 있지만, Switch는 문제가 아니죠.

def greater_less_equal_5(answer):
    if answer > 5:
        return 1
    elif answer < 5:
        return -1
    else:
        return 0

print (greater_less_equal_5(4))
print (greater_less_equal_5(5))
print (greater_less_equal_5(6))


# In[15]:


# 15 The Big If

def the_flying_circus():
    if 1 == 2 and 3 != 4 or not 5 < 6 and 7 <= 8 or 9 > 10 and 11 >= 10:
        print ("if evaluated")
        return True
    elif True:
        print ("elif evaluated")
        return True
    else:
        print ("Impossible to reach here")
        return False

the_flying_circus()