CS 1410-20 Lab 1

1. Implement manhattan-distance, which takes a posn and returns the number of “blocks” from the origin to the posn, which is the sum of the posn’s x- and y-coordinates.
2. Implement walk-south, which takes a posn and returns a posn that is like the given one, but with the y-coordinate incremented by 1.
3. Choose a representation for toast:
   • kind of bread: white or wheat
   • toastedness, on a scale of 0 to 10
4. Implement yummy-toast?. Toast is yummy when it’s white bread toasted to a level between 6 and 8 inclusive.
5. Implement toast-more, which takes some toast and makes it more toasted, if possible.
6. Choose a representation for bagels:
   • whether the bagel is sliced
   • whether the bagel has cream cheese
   • toastedness, on a scale of 0 to 10
7. Implement yummy-bagel? (specified however you like—examples should clarify).