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## Pairing Heap (Data Structure) MCQs

**1. Which node contains a pointer to its parent?**

a) root node

b) right most child

c) left most child

d) left sibling

**Answer: **left most child

**2. What is the basic operation performed in a pairing heap?**

a) merge

b) deletion

c) insertion

d) swapping

**Answer: **merge

**3. If there are c children of the root, how many calls to the merge procedure is required to reassemble the heap?**

a) c

b) c+1

c) c-1

d) 1

**Answer: **c-1

**4. Which of the following methods is the best choice for complex applications?**

a) binary heap

b) d-heap

c) treap

d) pairing heap

**Answer: **pairing heap

**5. Pairing heaps time complexity was inspired by that of?**

a) splay tree

b) treap

c) red-black tree

d) avl tree

**Answer: **splay tree

**6. The roots of the elements of the subtrees are smaller than the root of the heap.**

a) True

b) False

**Answer: **False

**7. The amortized time efficiency for performing deletion of a minimum element is?**

a) O(N)

b) O(log N)

c) O(N2)

d) O(M log N)

**Answer: **O(log N)

**8. Out of the following given options, which is the fastest algorithm?**

a) fibonacci heap

b) pairing heap

c) d-ary heap

d) binary heap

**Answer: **fibonacci heap

**9. What is the run time efficiency of an insertion algorithm?**

a) O(N)

b) O(log N)

c) O(N2)

d) O(M log N)

**Answer: **O(N)

**10. What is the reason for the efficiency of a pairing heap?**

a) simplicity

b) time-efficient

c) space-efficient

d) advanced

**Answer: **simplicity