What is complete binary tree in data structure?
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Why do we need linked list?
Does arraylist have index?
How do you insert a new item in a binary search tree?
Why is sorting and classifying important?
How do you check if a stack is empty or not?
Why do we need sorting?
Differentiate between singly and doubly linked lists?
An array having 100 elements have numbers from 1 to 99 randomly out of which any number is repeated. Find the repeated number in minimum time and space complexity.
What is dequeue in data structure?
Define a path in a tree?
What is 1d array?
Is array a linked list?