If in a DAG N sink vertices and M source vertices exists, then the number of possible stacks in the Graph Structured Stack representation would come out to be N*M.Group of answer choicesFalseTrue

If a Graph Structured Stack contains {1,2,3,4} {1,6,3,9} {1,5,3,4} and {2,9,7,8}, what would be the source and sink vertices of the DAC?Answer( Please choose a correct answer )   CLEARSource – 1, 8 Sink – 7,4Source – 1 Sink – 8,4Source – 3, 8 Sink – 4Source – 4, Sink – 1,8

A Graph Structured Stack is a _____________?Group of answer choicesDirected Acyclic GraphUndirected GraphDirected GraphRegular Graph

Select the correct answerA stack is implemented with an array of 'A [0..N - 1]' and a varlable 'pos'. The push and pop operations are defined by the following code.push(x) A[pos] ← X pos ← pos - 1end pushpop( ) pos ← pos + 1 return A[pos]end popWhich of the following will initialize an empty stack with capacity N for the above Implementation?Optionspos ← −1pos ← 1pos ← N−1pos

A stack is implemented using an array and the top is always pointing to the first position in the array. Assuming the stack is not empty, the time complexities of push() and pop() operations are:Group of answer choicesO(n) and O(1)O(n) and O(n)O(1) and O(n)O(1) and O(1)

A Stack can be implemented by using both ________ and ________.OptionsQueue, GraphQueues, TreesArrays, Linked listGraph, Linked List