Explain the priority queue?
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Define the term “percolate up”?
What is weight balanced tree in data structure?
What do you mean by data and data structure?
Does arraylist allow null values?
What is the purpose of sorting?
If we try to add duplicate key to the hashmap, what will happen?
What should I learn first data structures or algorithms?
What does the term sorting refer to?
What is 1d array?
How does variable declaration affect memory allocation?
Can we extend an array after initialization?
No. of possible ordered trees with n nodes ? Please give formula (if any).