What is array and its types with example?
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Which is better stack or queue?
What is the slowest sorting algorithm?
What is the difference between a Stack and a Queue.
Which is better hashmap or hashtable?
What is the function of stack?
Describe stack operation.
How can you add an item to the beginning of the list?
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.
Explain recursive function & what is the data structures used to perform recursion?
List the types of tree.
How do I start preparing for placement?
Define depth and height of a node?