In this post, we will see the solution of the Python Coding Question which is already asked in the TCS Xplore CPA Exam.

This question purely based on object-oriented programming.

Let’s see the Question:
Create a class DairyProduct with below attributes:

dairyld -> Number
dairyBrand  -> String
productType -> String
price -> Number
grade -> String

Sample Test Cases:
Input 1:

5
011
Ankit
Milk
25
grade3
131
Rahul
Curd
35
Grade1
021
Heritage
Milk
27
Gaade2
055
Kwality
lazzi
40
Grade1
060
Amul
Yogurt
35
Grade1
3
Grade1
10
Grade2
20
Grade3
5
Amul
Milk

Output 1:

No dairy product found

Input 2:

5
011
Aavin
Milk
25
grade3
131
Hatsun
Curd
35
Grade1
021
Heritage
Milk
27
Grade2
055
Kwality
lazzi
40
Grade1
060
Amul
Yogurt
35
Grade1
3
Grade1
25
Grade2
15
Grade3
5
Amul
Yogurt

Output 2:

Dairy Brand: Amul
Price: 43.75

Now let’s see the implementation for this problem statement:

# Create a DairyProduct 
# class with its attributes
class DairyProduct :

    # Define a constructor method
    # for initializing its attributes
    def __init__(self, *args) :

        # * is generally used for taking
        # variable number of arguments
        # in function/method
        
        # args is tuple of arguments
        # so we can access these arguments
        # with indices
        self.dairyId = int(args[0])
        self.dairyBrand = args[1]
        self.productType = args[2]
        self.price = int(args[3])
        self.grade = args[4]

# Create a ProductGrade 
# class with its attributes
# and method
class ProductGrade :

    # Define a constructor method
    # for initializing its attributes
    def __init__(self, *args) :

        self.dairyList = args[0]
        self.weightageDict = args[1]

    # Define a method for updating the price
    # as per requirement and return list of
    # tuple of brand name and its updated price
    def priceBasedOnBrandAndType(self, brand, ptype) :

        # empty list
        ans = []

        # iterate through each DairyProduct
        # objects present in the list
        for obj in self.dairyList :

            # if given condition is satisfied then
            # update the price for that brand
            # and appending into the list 
            if obj.dairyBrand == brand and obj.productType == ptype :

                obj.price += (obj.price * self.weightageDict[obj.grade]) / 100

                ans.append((brand, obj.price))

        # if list is empty then return
        # None otherwise return
        # that list
        if len(ans) :
            return ans
        else :
            return None

# Main program starts here
if __name__ == "__main__" :

    # read the number of DairyProduct 
    n1 = int(input())

    # empty list
    dairyProducts = []

    # Create a n1 number of
    # DairyProduct objects
    for i in range(n1) :

        # reading the data related
        # to DairyProduct class
        dId = input()
        dBrand = input()
        pType = input()
        price = input()
        grade = input().lower()

        # Create DairyProduct object 
        # with its attributes
        dpObj = DairyProduct(dId, dBrand, pType, price, grade)

        # adding DairyProduct object
        # to the list
        dairyProducts.append(dpObj)

    #  read the number of dictionary elements
    n2 = int(input())

    # empty dictionary
    weightageDict = {}

    
    for i in range(n2) :

        # reading the key,value
        # pair for a dictionary
        grade = input().lower()
        value = int(input()) 

        # insert key,value pair
        # to the dictionary
        weightageDict[grade] = value

    # Create ProductGrade object 
    # with its attributes
    pgObj = ProductGrade(dairyProducts, weightageDict)

    # reading brand name and product type
    dairyBrand = input()
    producttype = input()

    # priceBasedOnBrandAndType() method called
    rslt = pgObj.priceBasedOnBrandAndType(dairyBrand, producttype)

    # if rslt is not empty
    # then print required outputs
    # otherwise print message
    # "No dairy product found"
    if rslt :
        
        for item in rslt :
            print("Dairy Brand:", item[0])
            print("Price:", item[1])
            
    else :
        print("No dairy product found")
    

Thanks for reading this blog.

Checkout this post also: TCS Xplore CPA Python Coding Question -2 With Solution

If you have any doubts in understanding the above Code or Question then please comment below, we will try to clear your doubts.