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What architectural considerations would go into designing a news feed?

How does iOS ensure efficient memory utilization within applications?

Design the architecture for Spotify's app.

Can you figure out how to rotate a square matrix clockwise without using any extra matrix?

Could you explain the process of converting a JSON file into a Dictionary type?

Take a comprehensive look at the range of options available for executing asynchronous method calls in iOS. Detail the underlying concept behind completion handlers, delve into the nuanced workings of async/await, and touch upon other notable techniques utilized to effectively manage asynchronous tasks.

Share your thoughts on architecting a photo sharing app that can handle a massive user base.

Describe your plan for designing a user-friendly flight booking app.