PROGRAMMING CHALLENGE

This one should be difficult enough for you guys,

Write a function foo that takes a number n and returns a function that takes a number i, and returns n incremented by i.


My submission, in Scheme


(define (foo num)
  (lambda (x) (+ x num)))

>>89
You can't store it in a regular function pointer, but you can still call it as a regular function.
That's similar to >>21 in that you have to call() the returned block, you can't just invoke it like a method.