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Questions and Answers
What is a fundamental requirement for a Collection data structure?
What is a basic operation that a Collection data structure should provide?
What is the index number of the last element in an array with n elements?
How can you declare an array to store marks of 20 students?
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What happens when you assign values to an array at the time of declaration?
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What is a 2-dimensional array also known as?
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How do you declare a 2-dimensional array to store the elements of a 3x4 matrix?
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What is the purpose of declaring an array?
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What is the primary objective of studying data structures?
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What is the primary characteristic of a data structure?
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What is the primary consideration when selecting a data structure?
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Which of the following is a linear data structure?
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What is the main difference between linear and non-linear data structures?
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What is the purpose of studying data structures and algorithms in software engineering?
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Study Notes
Core Operations in Data Structures
- A collection data structure should provide ways to add, remove, and find/access items.
- Additionally, it should allow checking if the collection is empty, making it empty, and retrieving a subset of the collection.
Arrays
- Array index numbers start at 0, and the last index is n-1 for an array with n elements.
- Declaring an array to store marks of 20 students would look like
int marks[20];, with valid index numbers from 0 to 19. - Arrays can be declared with initial values, and the number of elements is determined automatically, e.g.,
int marks[] = {14,56,44,36,89,43};.
2-Dimensional Arrays
- A 2D array can be used to store a matrix, such as a 3x4 matrix, and can be declared as
int matrix[3][4];.
Data Structures Introduction
- A data structure is a way to store and organize data to facilitate access and modifications.
- It represents data and the operations allowed on that data.
- Data structures are used to represent logical relationships between individual data elements to solve a given problem.
Types of Data Structures
- Linear Data Structures: Arrays, Linked Lists, Stacks, Queues
- Non-Linear Data Structures: Trees, Graphs, Hash Tables
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Description
This quiz covers the introduction to data structures and algorithms, including the theoretical foundations of basic data structures and algorithms.
