Exercise 1.12 Pascal's triangle
Alexander Zutikov

Code Review

Compare your solutions
    (define (solution x y)
  (pascal (- x 1) (- y 1)))
  
(define (pascal a b)
  (if (or (= a b) (= b 0))
      1
      (+ (pascal (- a 1) b) (pascal (- a 1) (- b 1)))))


    (define (solution x y)
  (pascal (- x 1) (- y 1)))
  
(define (pascal a b)
  (if (or (= a b) (= b 0))
      1
      (+ (pascal (- a 1) b) (pascal (- a 1) (- b 1)))))


    (define (solution x y)
  (pascal (- x 1) (- y 1)))
  
(define (pascal a b)
  (if (or (= a b) (= b 0))
      1
      (+ (pascal (- a 1) b) (pascal (- a 1) (- b 1)))))


    (define (solution x y)
  (pascal (- x 1) (- y 1)))
  
(define (pascal a b)
  (if (or (= a b) (= b 0))
      1
      (+ (pascal (- a 1) b) (pascal (- a 1) (- b 1)))))