Which of the following data structures is typically used for undo and redo operations in applications like text editors?Group of answer choicesCircular linked listPriority linked listSingly linked listDoubly linked list
Question
Which of the following data structures is typically used for undo and redo operations in applications like text editors?Group of answer choicesCircular linked listPriority linked listSingly linked listDoubly linked list
Solution
The data structure typically used for undo and redo operations in applications like text editors is a Doubly linked list.
Here's why:
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In a Doubly linked list, each node contains a data part and two addresses, one for the previous node and one for the next node. This allows for easy traversal in both directions, which is crucial for undo and redo operations.
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When a user performs an action, the application can create a node containing the state of the document and add it to the list. The 'next' pointer of the current node (let's call it A) can point to this new node (B), and the 'previous' pointer of B can point to A.
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