Answer Posted / baskerdearer

number of possible tree = (2 power n) - n.
for example:
A tree contain three node.
so n=3.
possible tree = 8 - 3 = 5.

What do you mean by general trees?

1008

---

Can arraylist have duplicates?

916

---

What is ds heap sort?

902

---

Explain implementation of traversal of a binary tree.

1049

---

How does hashset work internally in java?

1001

---

How do you check if a stack is empty or not?

839

---

Which is faster hashmap or concurrenthashmap?

897

---

What is worst case complexity algorithm?

903

---

State the difference between stacks and linked lists?

981

---

What is doubly linked list in data structure?

820

---

What is difference between hashmap and treemap?

951

---

Which sorting is best?

902

---

Who invented data structure?

1063

---

In what order the elements of a hashset are retrieved?

965

---

Define a tree?

981

---