set
A set is like a magical box where you can keep your favorite toys. But here’s the trick: this box doesn’t allow any toy to be inside more than once. If you try to put the same toy in again, the box will say, ‘Nope, I already have that one!’ This makes sure everything inside is special and different.
Think of a set like a basket of fruits. You can have an apple, a banana, and an orange, but you can’t have two apples. If you already have an apple in your basket, adding another one won’t change anything. This keeps your basket neat and tidy, with just one of each fruit.
Another way to think about a set is like a group of friends playing a game. Each friend has a unique role, and no two friends can have the same role. This way, everyone knows exactly what they are doing, and there’s no confusion.
When you use a set, it helps you organize things by making sure you don’t have any repeats. It’s like having a superpower that keeps everything in order and easy to find!