Once upon a time, there was a little girl named Lily who loved to collect all sorts of things. She had an array of bags, bins, and containers, but she wanted to keep them organized. So she decided to use a computer program to help her.

The program used a data structure called a dictionary to store information about each item in her collection. For example, the dictionary would have a field for the name of the item, its size, and its location.

When Lily wanted to add a new item to her collection, she simply added it to the end of the deque, which was a special kind of array that allowed her to add or remove items from either the front or the back.

But sometimes, Lily would accidentally add an item to the wrong place in the deque. To fix this, she used a buffer to temporarily store the item so that she could move it to the correct location.

With her trusty computer program and her organized collection, Lily was able to keep track of all her treasures and never lose anything again! The end.

Reflections

1. What did Lily collect?
2. Why did she want to keep her collection organized?
3. How did she use a computer program to help her?
4. What was the deque in the story?
5. What was the purpose of the buffer in the story?