Computational Thinking Quiz 2: 16 August 2026 (May 2026 term)

1. A

   Useful Data has been mentioned above.

2. B

   This data attachment is just for a reference & not for an evaluation.

The following pseudocode is executed using the Scores dataset.

What does L contain at the end of the execution?

1. A

   Towns/cities where the highest and second highest total scores among students from that town/city differ by at most 10

2. B

   Towns/cities where every student has a total score within 10 marks of every other student from that town/city

3. C

   Towns/cities where the highest and second highest total scores among students from that town/city differ by more than 10

4. D

   Towns/cities where the first two students read from that town/city differ in total score by at most 10

The following pseudocode is executed using the Library dataset.

What does D store at the end of the execution?

1. A

   For each publisher, the name and year of one of its earliest English books in the dataset

2. B

   For each publisher, the name and year of one of its latest English books in the dataset

3. C

   For each publisher, the number of English books published by it

4. D

   For each publisher, the name and year of its earliest book, irrespective of language

The following pseudocode is executed on the Words dataset.

What does represent at the end of execution?

1. A

   Total number of words having at least 8 letters.

2. B

   Total number of nouns having at least 8 letters.

3. C

   Total number of sentences having at least 8 words.

4. D

   Total number of distinct words having at least 8 letters.

The following procedure takes a list of integers as input.

What is returned by ?

1. A

   —

2. B

   —

3. C

   —

4. D

   —

The following pseudocode is executed using the Shopping Bills dataset.

What does represent for a category C?

1. A

   The average price of distinct item names in category C, where each item name is counted once

2. B

   The average unit price of all purchased units belonging to category C across all bills

3. C

   The average total bill amount of bills that contain at least one item from category C

4. D

   The total cost of all items belonging to category C across all bills

The following pseudocode is executed using the Shopping Bills dataset. What will D represent at the end of the execution?

1. A

   For an item C, and a shop S, is set to True if and only if the item is sold for a constant price

2. B

   For an item C, and a shop S, is set to True if and only if the item is billed in more than one bill

3. C

   For an item C, and a shop S, is set to True if and only if the item is sold for variable price

4. D

   For an item C, and a shop S, is set to True if and only if the item is billed in exactly one bill

The following pseudocode is executed using the Words dataset. Choose all the correct statements.

Select all that apply.

1. A

   counts nouns that are palindromes

2. B

   Every word in L is a noun such that no pair of letters at symmetric positions (first–last, second–second-last, etc.) is the same.

3. C

   A word whose is not "Noun" can still increase if the word is a palindrome

4. D

   A noun with equal to 1 will always increase

The procedure visitedShop returns the list of names of people who have visited a particular shop in the Shopping Bills dataset. It accepts the shop's name as a parameter. Additionally, each customer must be represented exactly once in the returned list. The following pseudocode may have mistakes. Identify all such mistakes (if any).

Select all that apply.

1. A

   Error in line 2

2. B

   Error in line 6

3. C

   Error in line 7

4. D

   Error in line 16

5. E

   Error in line 18

6. F

   Error in line 19

7. G

   No error

The following pseudocode is executed on the Scores dataset. Assume uniquely identifies each student.

Which of the following statements are always true?

Select all that apply.

1. A

   Every sequence number stored in is also present in .

2. B

   stores the sequence numbers of students whose Mathematics marks are at least 90.

3. C

   —

4. D

   —

The following pseudocode is executed using the Library dataset. Choose all the correct statements.

Select all that apply.

1. A

   For each genre G, contains each author at most once

2. B

   For each genre G, is the total number of pages across all books in that genre

3. C

   If an author has three books in the same genre, at most one of those books contributes to

4. D

   If an author has more than one book in the same genre with different page counts, may depend on the order in which the rows are read

5. E

   For each genre G, is the sum of pages of the latest book written by each author in that genre