What is an avenue in a Karel world?

In the context of a Karel world, an avenue refers to a column within the grid that Karel navigates. The layout of a Karel world is often a rectangular grid consisting of streets (which run horizontally) and avenues (which run vertically). This grid structure is essential for defining the environment where Karel operates, allowing for specific commands that direct Karel along these avenues and streets.

Understanding the difference between avenues and other elements is crucial. For instance, while a block could refer to a unit of space that Karel can occupy, and a coordinate provides a specific location within the grid, neither of those accurately describes the vertical structure defined as an avenue. Commands are actions that Karel can perform (like moving or turning) but do not pertain to the physical layout of the Karel world.

Thus, recognizing that avenues are vertical columns where Karel can move helps in visualizing and programming Karel’s movements effectively within the grid structure.