Answers and Solutions

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Data structure is a way to organise data in computer so that it can be used efficiently.

There are two types of data structures

1. Linear data structure: Here, the data items are organised sequentially or linearly. Examples: Arrays, Stacks, Queues

2. Non-linear data structure: Here, the data items are not organised linearly. Every element is linked to more than one element. Examples: Trees, Graphs

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Some of the non-linear data structures are graphs and trees.

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Non linear data structures: 

• Any data structures in which data items are connected to other data items. These are trees and graphs.

Example: 

Usually the phone numbers are stored using non linear data structures (tree) to reduce the search time. 

example : +91 92033990 - this given phone number stored as +91 in one node (country specification), then area code , then remaining details

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A non-linear data structure is a data structure in which a data item is connected to several other data items. So that a given data item has the possibility to reach one-or-more data items. Examples of non-linear data-structures are Graphs and Trees. 

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tree, graph are some of the non linear data structures

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Arrays and linked lists are linear data structures. Graphs and trees are non-linear data structures. From on datat item/node, if we can reach to multiple data items or nodes  it is a non-linear data structure.​

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If from one node you can reach to multile nodes then it in non linear data structure.Some exmaples are graph and trees.

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Tree 

Graph

both are non - linear data structre 

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Arrays and linked lists are linear data structures. Graphs and trees are non-linear data structures. From on datat item/node, if we can reach to multiple data items or nodes  it is a non-linear data structure.