Question: What is the main advantage of using path compression in Disjoint Set Union?

Options:

1. It reduces the number of elements in a set
2. It speeds up the union operation
3. It flattens the structure of the tree for faster future queries
4. It allows for duplicate elements

Correct Answer: It flattens the structure of the tree for faster future queries

Solution:

The main advantage of using path compression is that it flattens the structure of the tree, leading to faster future queries by reducing the depth of the trees.