Which of the following scenarios is best suited for using a stack?
Practice Questions
Q1
Which of the following scenarios is best suited for using a stack?
Processing tasks in the order they arrive
Reversing a string
Searching for an element in a list
Maintaining a sorted list
Questions & Step-by-Step Solutions
Which of the following scenarios is best suited for 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 the task of reversing a string. For example, if we have the string 'hello', we want to change it to 'olleh'.
Step 3: To reverse the string using a stack, we can push each character of the string onto the stack one by one.
Step 4: After all characters are pushed onto the stack, we can then pop them off one by one. Since the last character pushed is the first one to be popped, this will give us the characters in reverse order.
Step 5: Therefore, using a stack is a suitable choice for reversing a string because it naturally handles the order of characters in the way we need.
