Which construct is used by stacks?Report an Errorlast-in, first-outfirst-in, last-outfirst-in, first-outlast-in, last-out

Identify the Stack Construct

1. The question is asking about the fundamental principle behind how stacks operate.

Relevant Concepts

2. Stacks are a type of data structure that follows a specific ordering principle known as LIFO (Last In, First Out). This means that the last element added to the stack is the first one to be removed.

Analysis

3. The other constructs mentioned in the options are:
   • First-in, First-out (FIFO): This is characteristic of queues, not stacks.
   • Last-in, Last-out (LILO): This is not a standard construct used in data structures.
   • First-in, Last-out (FILO): While this terminology is sometimes used, it essentially describes the same process as LIFO.

Verify and Summarize

4. Given that stacks operate under the LIFO principle, we can verify that no other options align with this structure.

Final Answer

The correct construct used by stacks is last-in, first-out (LIFO).