Which of the following applications can be efficiently solved using a stack?
Practice Questions
Q1
Which of the following applications can be efficiently solved using a stack?
Undo functionality in text editors
Breadth-first search in graphs
Finding the shortest path in a weighted graph
Sorting an array
Questions & Step-by-Step Solutions
Which of the following applications can be efficiently solved using a stack?
Step 1: Understand what a stack is. A stack is a data structure that follows the Last In, First Out (LIFO) principle, meaning the last item added is the first one to be removed.
Step 2: Think about actions in a text editor. When you type or make changes, each action can be thought of as an item that can be added to a stack.
Step 3: Consider the 'undo' functionality. When you want to undo an action, you need to go back to the last action you performed.
Step 4: Realize that using a stack allows you to easily retrieve the last action. You can pop the last action off the stack to undo it.
Step 5: Conclude that stacks are efficient for implementing undo functionality because they allow for quick access to the most recent actions.
