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SP3 - Tree - Learn Design Pattern From Simple Things
You need to store the leaves hierarchically, sometimes you will count the leaves. Tree will be a suitable structure to facilitate leaf counting.

CP5 - Singleton - Learn Design Pattern From Simple Things
Maintain one phone line indefinitely instead of repeatedly connecting and disconnecting. Learn the Singleton design pattern from simple things.

CP4 - Prototype - Learn Design Pattern From Simple Things
Having been with you for a long time, your robot has memories that regular manufacturing can't produce, now you want to clone it. Prototype will be your remedy.

BP2 - Strategy - Learn Design Pattern From Simple Things
As the coach of a strong team, you plan to attack to find a goal and then prioritize possession to preserve the score. This combination is called strategy.

SP2 - Decorator & Function Decorator & Closure - Learn Design Pattern From Simple Things
Ice cream gets better with extra flavor — and code gets richer with the Decorator pattern. Learn closures, function decorators, and object wrapping.

CP3 - Builder - Design Pattern From Simple Things
Building a house involves bringing together many parts, each house has its own specific requirements, you need a builder who can easily implement what you want.

BP1 - Gun (Iterator) - Design Pattern From Simple Things
There are bullets that need to be fired one by one in a specific order. You need a tool to set it up neatly and easily upgrade later.

CP2 - Comparison between Factories: Simple Factory & Factory Method & Abstract Factory - Design Pattern From Simple Things
Simple Factory is da best, Factory Method and Abstract Factory are cumbersome, complicated and stupid?

CP1 - Vending Machine (Factory) - Design Pattern From Simple Things
Beverages scattered across stores — too tiring to search each one. Learn how the Factory pattern centralizes object creation cleanly.