What are lists?
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why do tree always takes o(log n) time?
What is difference between while and do while?
Does set allow null values?
How does a hashmap work?
Check if duplicates exist in an array of N which has range 1 to N.
Given M x N matrix with sorted elements row wise and column wise, find elements?
What is a threaded binary tree? Explain its operation with example?
Have you ever used HashTable and Directory?
Is treemap sorted?
What is a subtree in data structures?
What is a Stack? Explain with example?
write a program to show the insertion and deletion of an element in an array using the position