MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DATA STRUCTURES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the elements “A”, “B”, “D” and “C” are placed in a stack and are deleted one at a time, in what order will they be removed?
A
ABCD
B
ABDC
C
CDBA
D
DCAB
Explanation: 

Detailed explanation-1: -1 Answer. The explanation is: Stack follows LIFO(Last In First Out). So the removal order of elements are DCBA.

Detailed explanation-2: -In stack we will delete the last entered element first.

Detailed explanation-3: -Dequeue (double-ended queues) are the refined queues in which elements can be added or removed at either end but not in the middle.

Detailed explanation-4: -Explanation: Elements in the stack are removed using pop operation. Pop operation removes the top most element in the stack i.e. last entered element.

Detailed explanation-5: -Queue is an abstract data type or a linear data structure, in which the first element is inserted from one end called the rear, and the removal of existing element takes place from the other end called as front.

There is 1 question to complete.