Quiz Stuff

• Use a full sheet of 8½ x 11" paper. (Half sheet? Half credit!)
• Put your last name and first initial in the far upper left hand corner!
  
• No need to write out questions.
• Numbering responses may help you avoid overlooking a question; it's ok to go ahead and pre-number your sheet.
• Time: three minutes; four questions worth 2+2+1+1 points and a half-point EC.

Quiz 10; March 29; Three minutes; 2+2+1+1 points

1. Briefly describe what's printed by this query:

   ?- append(A,B,[a,b,c,d,e]), writeln(A-B), fail.
   

   Note: Don't write out all six lines of output, just summarize it.
2. Name two distinctly different computations that the predicate length(?List,?Len) can perform.
3. What's the name of any higher-order Prolog predicate that's been mentioned in class?
4. Fill in the blanks:
   On Monday we talked about a puzzle involving finding a sequence
   of _______s to cross over a series of ______s.