2 Marks Each

Question 12 Marks

Write definition of a Method COUNTNOW(PLACES) to find and display those place names, in which there are more than 5 characters.

For example:If the list PLACES contains [''DELHI'', ''LONDON'', ''PARIS'', ''NEW YORK'', ''DUBAI'']The following should get displayedLONDONNEW YORK

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Question 22 Marks

Write definition of a method ZeroEnding(SCORES) to add all those values in the 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.

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Question 32 Marks

Write the definition of a function Reverse(X) in Python, to display the elements in reverse order such that each displayed element is the twice of the original element (element * 2) of the List X in the following manner:

Example:

If List X contains 7 integers is as follows:

X[0]	X[1]	X[2]	X[3]	X[4]	X[5]	X[6]
4	8	7	5	6	2	10

After executing the function, the array content should be displayed as follows:

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Question 42 Marks

For a given list of values in descending order, write a method in python to search for a value with the help of Binary Search method. The method should return position of the value and should return –1 if the value not present in the list.

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Question 52 Marks

Python program to check whether the list is empty or not.

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Question 62 Marks

Write a program to create the list and do the following operations using the predefined functions.

• To print sum of all element of the list• To find maximum element of the list• To find minimum element of the list• To find the length of the list• To sort the list in ascending order• To sort the list in descending order

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Question 72 Marks

With the help of the program, explain the different ways to accept the elements of the list and display all the elements.

Answer

In this case, while entering the list, we have to enter the
list in square bracket.
Input:
Enter the list[1,2,3,4]
Data Structure 97
Output:
[1, 2, 3, 4]
<class ‘list’>
Case 2:

In this case, we can enter the list elements segregated
with space. i.e
Input:
Enter the list : 1 2 3 4 5
Output:
[1, 2, 3, 4, 5]
<class ‘list’>
Case 3:

In this case, we can enter the list of items one by one
and add the element to the list using the append method.
i.e.
Input:
Enter a number: 1
Enter more data(y/n)? y
Enter a number: 4
Enter more data(y/n)? n
Output:
[1, 4]
<class ‘list’>

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Question 82 Marks

Consider the following randomly ordered numbers stored in a list
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.

Answer

Pass I → 234, 526, 132, 345, 467, 786
Pass II → 234, 132 , 345 , 467 , 526 , 786
Pass III → 132 , 234 , 345 , 467, 526, 786

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Question 92 Marks

Consider the following unsorted list :

[22, 54, 12, 90, 55, 78]Write the passes of selection sort for sorting the list in ascending order till the 3rd iteration.

Answer

Pass 1: [12, 54, 22, 90, 55, 78]
Pass 2 : [12, 22, 54, 90, 55, 78]
Pass 3 : [12, 22, 54, 90, 55, 78]

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Question 102 Marks

Consider the following unsorted list

79 19 43 52 3 95

Write the passes of bubble sort for sorting the list in ascending order till the 3rd iteration.

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Question 112 Marks

Define Sorting and name a few sorting techniques.

Answer

Sorting means to arrange the elements of a list either in ascending or descending order

Different types of sorting methods are Bubble sort, Selection Sort, Insertion Sort, Quick Sort, Bucket Sort.

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Computer Science 2 Marks Each

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