Is Stack A LIFO Or FIFO?
Is Stack A LIFO Or FIFO? 12 Answers. Stack is a LIFO (last in first out) data structure. The associated link to wikipedia contains detailed description and examples. Queue is a FIFO (first in first out) data structure. Are stacks filo or LIFO? A stack is referred to as a Last-In-First-Out (LIFO) and First-In-Last-Out (FILO)