; Joe Student
; CSCI--4150 Intro to AI
; Assignment 3
; 
(load "a3code") ; don't change the pathname or add an extention
(load "a3puzzles")

; Problem 1
;
(define (transpose M)
  ; your procedure(s) here


; Problem 2
;
(define (pair-combinations A B)
  ; your procedure(s) here


; Problem 3
; 
(define (valid-left? sbp block)
  ; your procedure(s) here

(define (valid-up? sbp block)
  ; your procedure(s) here

(define (valid-down? sbp block)
  ; your procedure(s) here


; Problem 4
; 
(define (sbp-child-states sbp)
  ; your procedure(s) here


; Problem 6
; 
(define (manhattan-dist sbp goal-template)
  ; your procedure(s) here


; Problem 8
;
; note that this prototype is corrected from the assignment handout
;
; once you define this procedure, you should be able to write, for example:
; 
; (define (hughes-heuristic sbp)
;   (sbp-heuristic sbp hughes-goal))
;   
(define (sbp-heuristic sbp goal-template)
  ; your procedure(s) here