Data Structure Assignment Help
Data structure refers to a particular method of organizing data in a computer so that it can be used effectively. Our data structure assignment help caters to all topics related to this subject such as an array, pointers, Linked List, Stack, searching, sorting, programs, etc. Here are some of the basic terms often used in data structure:
- Data definition
It involves defining data with the following characteristics:
- Atomic – a single concept definition
- Traceable – definition of data is mapped to some data element
- Accurate – unambiguous definition
- Concise and clear – definition is understandable
- Data Object
An object with data is represented by a data object.
- Data type
This is a way of classifying various types of data. For example, integers, float, string,etc. The data type determines the values that can be used with the corresponding type of data. Also, it regulates the type of operation that can be performed on the corresponding data. Data types can be further divided into two:
Built-in data type
Built-in data types are those that a programming language has built-in support for. Most programming languages support the following data types:
- Character and strings
Derived data types
Derived data types can be implemented in a language in one way or the other. They are usually created by a combination of primary or built-in data types and associated operations on them. Examples of derived data types include:
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- Basic Operations
There are particular and specific operations that are used to process the data in data structures. It is the frequency of the operation that needs to be performed on the data structure that determines the data structure chosen. The basic data structure operations include:
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An array can hold a fixed number of items of the same type. It is often used by most data structures in the implementation of algorithms. You should understand the following concepts of an array:
An element refers to items that are stored in an array
A numerical index is used to identify the elements in the array. A numerical index is allotted to each location of an element in the array.
Representing and Array
Different languages have different ways of declaring an array. Let us take an example of the C programming language.
In the illustration above, you should consider the following essential points:
- The numerical index starts with 0
- The array size is 7. This means that this array can store up to 7 elements
- We can fetch each element through its index for example, the element 27 can be accessed via the index 1.
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The basic operations supported by arrays
- Traverse – You can use this method to print all the array elements one by one. It is used to traverse through the elements of an array.
- Insertion – This operation is used to add an element at the given index. It can be used to add one or more data elements into an array. You can add an element at the beginning, end or any given index of the array
- Deletion – use this operation to delete an element at the given index. The deletion operation reorganizes the whole of the elements in the array after removing an existing element
- Search – It is used to search an element using the given index or by the value. Based on the value or index of an element, you can perform a search in an array.
- Update – an operation used to update an element at the given index.
In C programming, an array assigns default values to its element when it is initialized with size. Here is the order it uses:
|Data Type||Default Value|
A sequence of data structures connected through links is called a linked list. It is the second most used data structure after an array. In a linked list, each link has a connection with another link. Below we have defined some of the important terms usually used in a linked list.
- Link – links are used to store data called elements
- Next – It refers to a link to the next link
- First – It refers to the connection link to the first link
Representation of a Linked List
From the diagram above, you can see that a linked list can be visualized as a chain of nodes. In the chain, every node points to the next node. Here are the essential points that you should note from the diagram:
- Each link in a link list has a link field called next and each link carries a data field
- Each link’s next link connects it to the next link
- The null carried by the last link marks the end of the list.
Types of Linked Lists
- Simple Linked List
In this type of linked list, the item navigation is forward only
- Doubly linked list
The items in a double-linked list can be navigated both backward and forward.
- Circular linked list
The last item on the list has a link connecting it to the first element as next. Also, the first element has a link to the last element as previous. Get our data structure project help for immediate assistance with various assignments related to linked lists.
The basic operations in a linked list
Here are the common operations supported by a list:
- Insertion – This operation adds an element at the beginning of a list. It involves more than one step activity. First, you have to create a node and decide on the location where it has to be inserted.
- Deletion – It is used to delete an element at the beginning of the list
- Display – the display operation is used to display the complete list
- Search – This operation uses a given key to search for an element in the list
- Delete – Uses a given key to remove an element from the list
A stack can be defined as an Abstract Data Type (ADT) that is usually used in most programming languages. It is called stack because it takes the behavior of a real-world stack like a deck of cards or a pile of plates. In a real-world stack, operations are only allowed at one end. For example, in a pile of plates, we can place or remove a plate from the top of the stack only. The same way. ADT stack allows operations at one end. This makes it have a LIFO feature, which means Last In, First Out. Meaning, the element that is inserted or added last is the first to be accessed.
In stack, a PUSH operation is a terminology used to refer to the insertion operation. On the other hand, the removal operation is referred to as POP operation.
Representing a stack
We can implement a stack utilizing structure, array pointer, or linked list. Stacks can have a sense of dynamic resizing or be fixed in size. When you implement a stack using an array, it becomes a fixed-size stack implementation. Buy data structure assignment help from us if you feel that your homework is too complicated for you to handle.
Basic Stack Operations
In stack operations, we may be required to initialize the stack using it and then de-initialize it. This is just the basics. Below are the two primary operations used in Stacks:
- Push() – It is an operation used for pushing and storing an element on the stack
- Pop() – This operation removes or accesses an element from the stack
You need to check the status of a stack to use it efficiently. The functionalities below are added to stacks for the same purpose:
- Peek() – it is used to get the top data element of the stack without removing it
- isFull() – it is used to check if the stack is full
- isEmpty() – This functionality check if the stack is empty
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