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Searching & Sorting Questions

NA
SHSTTON
418
Solv. Corr.
354
Solv. In. Corr.
772
Attempted
0 M:0 S
Avg. Time

11 / 69

Choose the correct option.

In worst case Quick Sort has order


AO(n log n)

B\(O\left(n^{2}\right)\)

CO(log n)

D\(O\left(\frac{n^{2}}{4}\right)\)

Answer: Option B

Explanation:

The worst case time complexity of a typical implementation of QuickSort is O(n2)

Workspace

NA
SHSTTON
97
Solv. Corr.
540
Solv. In. Corr.
637
Attempted
0 M:38 S
Avg. Time

12 / 69

Choose the correct option.

A sort which relatively passes through a list to exchange the first element with any element less than it and then repeats with a new first element is called


Ainsertion sort.

Bselection sort.

Cheap sort.

Dquick sort.

Answer: Option D

Explanation:

The right answer is the Selection Sort.

Workspace

NA
SHSTTON
298
Solv. Corr.
262
Solv. In. Corr.
560
Attempted
1 M:52 S
Avg. Time

13 / 69

Choose the correct option.

Which of the following sorting algorithms does not have a worst case running time of O(n^2)?


AInsertion sort

BMerge sort

CQuick sort

DBubble sort

Answer: Option B

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
351
Solv. Corr.
204
Solv. In. Corr.
555
Attempted
0 M:0 S
Avg. Time

14 / 69

Choose the correct option.

The quick sort algorithm exploit _________ design technique


AGreedy

BDynamic programming

CDivide and Conquer

DBacktracking

Answer: Option C

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
94
Solv. Corr.
429
Solv. In. Corr.
523
Attempted
1 M:0 S
Avg. Time

15 / 69

Choose the correct option.

The total number of companions required to merge 4 sorted files containing 15, 3, 9 and 8 records into a single sorted file is


A66

B15

C39

D3

E33

Answer: Option E

Explanation:

ans has to be 66

coz to merge two sorted file of size 'm' and 'n', we need (m+n ) comparision
and to merge (m + n) with file of size 'p' we need (m+n+p)

and total no of comparision to create a file from all m, n and p is  [(m+n) + (m+n+p)]


so above ans has to be 66

Workspace

NA
SHSTTON
108
Solv. Corr.
354
Solv. In. Corr.
462
Attempted
0 M:3 S
Avg. Time

16 / 69

Choose the correct option.

You have to sort a list L consisting of a sorted list followed by a few "random" elements. Which of the following sorting methods would be especially suitable for such a task?


ABubble sort

BSelection sort

CQuick sort

DInsertion sort

Answer: Option D

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
116
Solv. Corr.
410
Solv. In. Corr.
526
Attempted
0 M:6 S
Avg. Time

17 / 69

Choose the correct option.

A technique for direct search is


ABinary Search

BLinear Search

CTree Search

DHashing

Answer: Option D

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
249
Solv. Corr.
250
Solv. In. Corr.
499
Attempted
0 M:2 S
Avg. Time

18 / 69

Choose the correct option.

The searching technique that takes O (1) time to find a data is


ALinear Search

BBinary Search

CHashing

DTree Search

Answer: Option C

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
266
Solv. Corr.
220
Solv. In. Corr.
486
Attempted
0 M:14 S
Avg. Time

19 / 69

Choose the correct option.

The number of interchanges required to sort 5, 1, 6, 2 4 in ascending order using Bubble Sort is


A6

B7

C5

D8

Answer: Option C

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
354
Solv. Corr.
237
Solv. In. Corr.
591
Attempted
0 M:22 S
Avg. Time

20 / 69

Choose the correct option.

Merging 4 sorted files containing 50, 10, 25 and 15 records will take____time


AO(100)

BO(200)

CO(175)

DO(125)

Answer: Option A

Explanation:

Here is no explanation for this answer

Workspace

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