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

# # Chapter 14 Loops
# 
# <img align="left" src="https://i.imgur.com/lnc0qMV.png" />

# In[1]:


# 01 While you are here

count = 0

if count < 5:
    print ("Hello, I am an if statement and count is", count)

while count < 10:
    print ("Hello, I am a while and count is", count)
    count += 1


# In[2]:


# 02 Condition

loop_condition = True

while loop_condition:
    print ("I am a loop")
    loop_condition = False
    


# In[3]:


# 03 While you are at it

num = 1

while num <= 10: # Fill in the condition (before the colon)
    print (num ** 2) # Print num squared
    num += 1# Increment num (make sure to do this!)


# In[4]:


# 04 Simple errors

choice = input('Enjoying the course? (y/n)')

while choice != "y" and choice != "n":# Fill in the condition (before the colon)
    choice = input("Sorry, I didn't catch that. Enter again: ")


# In[5]:


# 05 Infinite loops

count = 0

while count < 10: # Add a colon
    print (count)
    count += 1# Increment count
  


# In[6]:


# 06 Break

count = 0

while True:
    print (count)
    count += 1
    if count >= 10:
        break


# In[7]:


# 07 While else

import random

print ("Lucky Numbers! 3 numbers will be generated.")
print ("If one of them is a '5', you lose!" )

count = 0
while count < 3:
    num = random.randint(1, 6)
    print (num)
    count += 1
    if num == 5:
        print ("Sorry, you lose!")
        break
else:
    print ("You win!")
    


# In[8]:


# 08 Your own while else

from random import randrange

random_number = randrange(1, 10)

count = 0
# Start your game!
guess = int(input("Enter a guess:"))
while guess != random_number:
    count += 1
    if count == 3:
        print ("OMG! You lose! the answer is", str(random_number) + ", BB!")
        break
    guess = int(input("Guess wrong, %s chance(s) left, enter a guess:" % (3 - count)))
else:
    print ("OMG! You win! GB!")
    


# In[9]:


# 09 For your health

print ("Counting...")

for i in range(20):
    print (i)


# In[10]:


# 10 For your hobbies

hobbies = []

# Add your code below!
for i in range(3):
    hobby = input("What's your hobby?")
    hobbies.append(hobby)
    


# In[11]:


# 11 For your strings

thing = "spam!"

for c in thing:
    print (c)

word = "eggs!"

# Your code here!
for c in word:
    print (c)
    


# In[12]:


# 12 For your A

s = "A bird in the hand..."

# Add your for loop
for c in s:
    if c == 'A' or c == 'a':
        print ("X",)
    else:
        print (c,)

#Don't delete this print statement!
print() # fanfank thinks it's related to buffer issue, without this line, the content is left in the buffer and not printed


# In[13]:


# 13 For your lists

numbers  = [7, 9, 12, 54, 99]

print ("This list contains: ")

for num in numbers:
    print (num)

# Add your loop below!
for num in numbers:
    print (num ** 2)
    


# In[14]:


# 14 Looping over a dictionary

d = {'x': 9, 'y': 10, 'z': 20}

for key in d:
    print ( key, d[key] )# Your code here!


# In[15]:


# 15 Counting as you go

choices = ['pizza', 'pasta', 'salad', 'nachos']

print ('Your choices are:')
for index, item in enumerate(choices):
    print (index + 1, item)
    


# In[16]:


# 16 Multiple lists

a = [3, 9, 17, 15, 19]
b = [2, 4, 8, 10, 30, 40, 50, 60, 70, 80, 90]

# Add your code here!
for a, b in zip(a,b):
    print (max(a, b))


# In[17]:


# 17 For else

fruits = ['banana', 'apple', 'orange', 'tomato', 'pear', 'grape']

print ('You have...')
for f in fruits:
    if f == 'tomato':
        print ('A tomato is not a fruit!') # (It actually is.)
        break
    print ('A', f)
else:
    print ('A fine selection of fruits!')
    


# In[18]:


# 18 Change it up

fruits = ['banana', 'apple', 'orange', 'pear', 'grape']

print ('You have...')
for f in fruits:
    if f == 'tomato':
        print ('A tomato is not a fruit!') # (It actually is.)
        break
    print ('A', f)
else:
    print ('A fine selection of fruits!')
    


# In[19]:


# 19 Create your own

lst1 = [1, 3, 5, 8, 9]
lst2 = [1, 3, 5, 7, 9, 11]
for a, b in zip(lst1, lst2):
    if a != b:
        break;
    print (a)
else:
    print ("Hi, impossible to execute me~")