Day_08.py

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

# # Question 22
# 
# ### **Question:**
# 
# > **_Write a program to compute the frequency of the words from the input. The output should output after sorting the key alphanumerically._**
# 
# > **_Suppose the following input is supplied to the program:_**
# 
# 
# New to Python or choosing between Python 2 and Python 3? Read Python 2 or Python 3.
# 
# 
# > **_Then, the output should be:_**
# 
# ```
# 2:2
# 3.:1
# 3?:1
# New:1
# Python:5
# Read:1
# and:1
# between:1
# choosing:1
# or:2
# to:1
# ```
# 
# ---
# 
# ### Hints
# 
# > **_In case of input data being supplied to the question, it should be assumed to be a console input._**
# 
# ---
# 
# 
# 
# **Solutions:**

# In[1]:


ss = input().split()
word = sorted(set(ss))  # split words are stored and sorted as a set

for i in word:
    print("{0}:{1}".format(i, ss.count(i)))


# **OR**

# In[2]:


ss = input().split()
dict = {}
for i in ss:
    i = dict.setdefault(
        i, ss.count(i)
    )  # setdefault() function takes key & value to set it as dictionary.

dict = sorted(
    dict.items()
)  # items() function returns both key & value of dictionary as a list
# and then sorted. The sort by default occurs in order of 1st -> 2nd key
for i in dict:
    print("%s:%d" % (i[0], i[1]))


# **OR**

# In[3]:


ss = input().split()
dict = {
    i: ss.count(i) for i in ss
}  # sets dictionary as i-> split word & ss.count(i) -> total occurrence of i in ss
dict = sorted(
    dict.items()
)  # items() function returns both key & value of dictionary as a list
# and then sorted. The sort by default occurs in order of 1st -> 2nd key
for i in dict:
    print("%s:%d" % (i[0], i[1]))


# **OR**

# In[4]:


from collections import Counter

ss = input().split()
ss = Counter(ss)  # returns key & frequency as a dictionary
ss = sorted(ss.items())  # returns as a tuple list

for i in ss:
    print("%s:%d" % (i[0], i[1]))


# **Solution by: AnjanKumarG**

# In[5]:


from pprint import pprint

p = input().split()
pprint({i: p.count(i) for i in p})


# ---
# 
# # Question 23
# 
# ### **Question:**
# 
# > **_Write a method which can calculate square value of number_**
# 
# ---
# 
# ### Hints:
# 
# 
# Using the ** operator which can be written as n**p where means n^p
# 
# 
# ---
# 
# 
# 
# **Solutions:**

# In[6]:


n = int(input())
print(n ** 2)


# ---
# 
# # Question 24
# 
# ### **Question:**
# 
# > **_Python has many built-in functions, and if you do not know how to use it, you can read document online or find some books. But Python has a built-in document function for every built-in functions._**
# 
# > **_Please write a program to print some Python built-in functions documents, such as abs(), int(), raw_input()_**
# 
# > **_And add document for your own function_**
# 
# ### Hints:
# 
# 
# The built-in document method is __doc__
# 
# 
# ---
# 
# 
# 
# **Solutions:**

# In[7]:


print(str.__doc__)
print(sorted.__doc__)


def pow(n, p):
    """
    param n: This is any integer number
    param p: This is power over n
    return:  n to the power p = n^p
    """

    return n ** p


print(pow(3, 4))
print(pow.__doc__)


# ---
# 
# # Question 25
# 
# ### **Question:**
# 
# > **_Define a class, which have a class parameter and have a same instance parameter._**
# 
# ---
# 
# ### Hints:
# 
# 
# Define an instance parameter, need add it in __init__ method.You can init an object with construct parameter or set the value later
# 
# 
# ---
# 
# 
# 
# **Solutions:**

# In[8]:


class Car:
    name = "Car"

    def __init__(self, name=None):
        self.name = name


honda = Car("Honda")
print(f"{Car.name} name is {honda.name}")

toyota = Car()
toyota.name = "Toyota"
print(f"{Car.name} name is {toyota.name}")


# ---