Caastle Technology And Services Interview Questions, Process, and Tips

Q1. Middle of linklist
Ans. 
To find the middle element of a linked list
• Traverse the linked list using two pointers, one moving one step at a time and the other moving two steps at a time

• When the faster pointer reaches the end of the list, the slower pointer will be at the middle element

• If the list has even number of elements, there are two middle elements
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Q2. Delete a node in linkist
Ans. 
To delete a node in a linked list, update the previous node's next pointer to skip the node to be deleted.
• Traverse the linked list to find the node to be deleted

• Update the previous node's next pointer to skip the node to be deleted

• Free the memory allocated to the node to be deleted
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Q1. Design Coffee Machine
Ans. 
Design a coffee machine with various functionalities.
• Include options for different types of coffee (espresso, latte, cappuccino)

• Allow customization of coffee strength and size

• Provide options for adding milk, sugar, and other additives

• Include a water reservoir and bean grinder for fresh coffee

• Have a user-friendly interface with buttons or touchscreen
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Q1. Write a sql query to find highest salary in a company’s department
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