First-in-first-out collection.

B-tree variant storing records primarily at leaves.

Ordering of vertices in a directed acyclic graph.

Compact conditional expression with three operands.

Last-in-first-out collection.

Tree optimized for prefix-based string lookup.

Graph traversal exploring neighbors level by level.

Data type representing true or false.

Concrete object created from a class.

Reserved word with special language meaning.