Page 365 - C++

CBSE AISSCE 2017-2018 Marking Scheme for Computer Science
(2018-2019 Sub Code: 083 Paper Code: 91)

(1 Mark for writing correct Inheritance type)

(ii) Find and write the output of the above code.

Ans 3 6 9
OR
“Error” / “No Output”

(1 Mark for writing correct answer)

(iii) What are the methods shown in Line 1, Line 3 and Line 5 are known as?

Ans Constructors

(1 Mark for writing correct answer)

(iv) What is the difference between the statements shown in Line 6 and Line 7?

Ans Initializing the member of child class in Line 6 and calling the parent class
constructor in Line 7

(1 Mark for writing correct answer)

3 (a) Consider the following randomly ordered numbers stored in a list 3
786, 234, 526, 132, 345, 467,

Show the content of list after the First, Second and Third pass of the bubble sort
method used for arranging in ​ascending order​?

Note: Show the status of all the elements after each pass very clearly underlining
the changes.

Ans I Pass ​234, 526, 132, 345, 467, 786
II Pass ​234, ​132​, ​345​, ​467​, ​526​, 786
III Pass ​ ​132​, ​234​, ​345​, 467, 526, 786
(1 mark for each correct pass)

(b) Write definition of a method ​ZeroEnding(SCORES) to add all those values in the 3
list of SCORES, which are ending with zero (0) and display the sum.
For example,
If the SCORES contain [200,456,300,100,234,678]

The sum should be displayed as 600

Ans def ZeroEnding(SCORES):
s=0
for i in SCORES:
if i%10==0:

s=s+i
print s

( ½ mark for function header)
( ½ mark for initializing s (sum) with 0)

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