15 Questions
Which data structure follows a last in, first out (LIFO) order?
Stack
What are the two primary operations of a stack?
Push and pop
In a stack, where can a new element be added?
At the top
Which real-world example represents a stack?
A pile of plates placed on each other
What is the order in which elements are popped from a stack?
Last in, first out (LIFO)
What is the purpose of using a stack in programming?
To store elements sequentially dependent on each other
What must be decided by the programmer when implementing a stack?
The order in which elements are pushed
Which data structure is used when elements need to be stored in a safe manner where it is not desirable to modify them from an arbitrary position such as the middle?
Stack
What property of the stack allows elements to be pushed onto it and then popped when certain specified conditions are met between the top of the stack and the next incoming element?
LIFO property
What is the purpose of using a stack to reverse a string?
To get elements out in the reverse order in which they were inserted
Which real-world problem can be solved using a stack?
Balancing parentheses in a code file
What functionality are stacks commonly used for in editing?
Undo/redo operations
In which situation does a stack facilitate recursive subroutines?
When storing information about the recursion calls
What is the difference between a stack and a queue?
Stack follows LIFO property, while queue follows FIFO property
What is the purpose of using a stack in checking code files?
To balance parentheses in the code file
Test your knowledge on Stacks pattern, its real-world applications, and problem-solving techniques. Explore examples, understand the LIFO order, and identify if your problem matches this pattern. Get ready to master the Stacks pattern!
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