- Computer Science Engineering (CSE)
- Data Structure (DS)
- ……… form of access is used to add and re...

Q. |
## ……… form of access is used to add and remove nodes from a queue. |

A. | LIFO, Last In First Out |

B. | FIFO, First In First Out |

C. | Both a and b |

D. | None of these |

Answer» B. FIFO, First In First Out |

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Data Structure (DS)

- Suppose you are given an implementation of a queue of integers. The operations that can be performed on the queue are: i. isEmpty (Q) — returns true if the queue is empty, false otherwise. ii. delete (Q) — deletes the element at the front of the queue and returns its value. iii. insert (Q, i) — inserts the integer i at the rear of the queue. Consider the following function: void f (queue Q) { int i ; if (!isEmpty(Q)) { i = delete(Q); f(Q); insert(Q, i); } }What operation is performed by the above function f ?
- Consider a standard Circular Queue 'q' implementation (which has the same condition for Queue Full and Queue Empty) whose size is 11 and the elements of the queue are q[0], q[1], q[2].....,q[10]. The front and rear pointers are initialized to point at q[2] . In which position will the ninth element be added?
- Suppose a circular queue of capacity (n – 1) elements is implemented with an array of n elements. Assume that the insertion and deletion operation are carried out using REAR and FRONT as array index variables, respectively. Initially, REAR = FRONT = 0. The conditions to detect queue full and queue empty are
- New nodes are added to the ……… of the queue.
- A graph is a collection of nodes, called ………. And line segments called arcs or ……….. that connect pair of nodes.
- A binary tree in which all its levels except the last, have maximum numbers of nodes, and all the nodes in the last level have only one child it will be its left child. Name the tree.
- In a queue, the initial values of front pointer f rare pointer r should be …….. and ……….. respectively.
- In a priority queue, insertion and deletion takes place at ………………
- In a circular queue the value of r will be ..
- ………… is not the operation that can be performed on queue.

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