How many generations does a heap data structure have?

In the data structure of type heap in .NET (C#), three generations are used for memory management in the Garbage Collector:

• Generation 0 (Gen 0): contains recently created objects. Collection occurs frequently and quickly.
• Generation 1 (Gen 1): an intermediate generation, objects that have survived a Gen 0 collection are moved here.
• Generation 2 (Gen 2): contains long-lived objects that have survived multiple collections.

This approach allows efficient memory management, minimizing garbage collection time for short-lived objects and focusing more on long-lived objects.