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

# #Advanced Python Objects Test

# ##Advanced Numbers
# 
# **Problem 1: Convert 1024 to binary and hexadecimal representation:**

# In[6]:


print bin(1024)
print hex(1024)


# **Problem 2: Round 5.23222 to two decimal places**

# In[5]:


round(5.23222,2)


# ##Advanced Strings
# **Problem 3: Check if every letter in the string s is lower case**

# In[7]:


s = 'hello how are you Mary, are you feeling okay?'

s.islower()


# **Problem 4: How many times does the letter 'w' show up in the string below?**

# In[8]:


s = 'twywywtwywbwhsjhwuwshshwuwwwjdjdid'
s.count('w')


# ##Advanced Sets

# **Problem 5: Find the elements in set1 that are not in set2:**

# In[12]:


set1 = {2,3,1,5,6,8}
set2 = {3,1,7,5,6,8}

set1.difference(set2)


# **Problem 6: Find all elements that are in either set:**

# In[16]:


set1.union(set2)


# ##Advanced Dictionaries
# 
# **Problem 7: Create this dictionary:
# {0: 0, 1: 1, 2: 8, 3: 27, 4: 64}
#  using dictionary comprehension.**

# In[17]:


{x:x**3 for x in range(5)}


# ##Advanced Lists
# 
# **Problem 8: Reverse the list below:**

# In[22]:


l = [1,2,3,4]

l.reverse()

l


# **Problem 9: Sort the list below**

# In[24]:


l = [3,4,2,5,1]

l.sort()

l


# #Great Job!