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2 Answers

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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

TCS python paper - 1

TCS python paper - 2

TCS python paper - 3

TCS python paper - 4

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TCS python paper - 6

TCS python paper - 7

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
by Expert (107,880 points)
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# 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")

    

by Expert (107,880 points)