CCS 104: Single-Dimension Array

Questions and Answers

What is the expected output when the input numbers are 3, 7, 2, 9, and 4?

3–6 7–14 2–4 9–18 4–8 (correct)

3–6 7–14 2–8 9–18 4–8

3–6 7–14 2–4 9–18 4–16

3–3 7–7 2–2 9–9 4–4

Which programming construct is primarily used to store the integer inputs from the user?

List

Dictionary

Set

Array (correct)

If the input values are 3, 8, 2, 9, and 4, what will be displayed as the output for the program that shows only even numbers?

2 4 8

3 8 2 4

4 2 8

8 2 4 (correct)

What does the program do with the input integers after storing them in the array?

Displays the integers and their double Signup and view all the answers

In the context of this program, what is the output format for displaying each number with its double?

number - double Signup and view all the answers

What defines an array in programming?

A collection of variables of the same type organized in sequence. Signup and view all the answers

What type of structure is an array classified as?

Homogeneous and linear structure. Signup and view all the answers

How are the elements of an array accessed?

Using the array name and the index. Signup and view all the answers

What indexing method is used in arrays?

Zero-based indexing. Signup and view all the answers

Which statement is true about the elements of an array?

All elements can be randomly accessed without order. Signup and view all the answers

What is the correct syntax for declaring an integer array in C?

int array_name[size]; Signup and view all the answers

When accessing an element of an array 'numbers' at index 2, which syntax is valid?

numbers[2]; Signup and view all the answers

What is the output of printf("%d – %d – %d", numbers[0], numbers[1], numbers[2]); if numbers is initialized as {10, 5, 7, 0, 2}?

10 – 5 – 7 Signup and view all the answers

Study Notes

Introduction to Data Structures

Data Structures are essential for organizing and managing data efficiently.
Arrays are a central data structure, consisting of components of the same type, referred to as the base type.

Single-Dimension Array Characteristics

Homogeneous structure: All variables within an array are of the same type.
Linear structure: Elements are arranged in a sequential manner.
Random-access capabilities: All components can be selected and accessed randomly, making data retrieval efficient.

Array Elements and Access

Individual data within an array is known as an array element.
Each element can be accessed using the combination of the array name and an index (subscript).
The syntax for declaring an array: type array_name[size].

Accessing Elements

Elements are accessed using the format array_name[index].
Example with array named "numbers":
- numbers[0] retrieves the first element, while numbers[4] retrieves the fifth element.

Examples of Array Initialization and Output

Arrays can be initialized as follows:
- numbers[0] = 10; numbers[1] = 5; numbers[2] = 7;
Outputs can be formatted using functions, e.g., printf(“%d – %d – %d”, numbers) to display multiple values.

Practical Programming Problems

Problem #1: Create a program to accept 5 integers, store them in an array, and display each number with its double.
- Input Example: 3, 7, 2, 9, 4
- Output Example:
  - 3 – 6
  - 7 – 14
  - 2 – 4
  - 9 – 18
  - 4 – 8
Problem #2: Develop a program to accept 5 integers, storing them in an array, and display only even numbers.
- Input Example: 3, 8, 2, 9, 4
- Output Example:
  - 8
  - 2
  - 4

Inspirational Quote

"I'm not a great programmer; I'm just a good programmer with great habits." - Kent Beck

Description

This quiz covers the fundamental concepts of single-dimension arrays as part of the Introduction to Data Structures and Algorithms course. It focuses on the definition, characteristics, and organization of arrays, emphasizing their homogeneous structure and linear arrangement. Test your understanding of these foundational elements of data structures.