Well, I can't entirely agree. The code in my prior post is intended to be instructional, in the vein of "crawl before you walk; walk before you run." Given that, perhaps it should have been ("may be," if I get around to it) extensively commented.

1. Your pseudo-code 2 doesn't match what amounts to a spec in Pseudo-code 1.
   
   • Pseudo-code 1 doesn't say anything about GOing to the store, so knock out lines 5 and 13
   • Pseudo-code 1 says, unambiguously, that what you want is
     1. 2% milk (no need to survey the types).
     2. the least expensive item satisfying the prior criterion. ^*
2. Hence, there is no need for line 9, "compare prices to the types"
3. Line 10 contradicts the spec; see my line 3 below.
4. And to carry on with the absurdities, your lines 2, 11, and 12 are implicit in "buy"

^* We can regard "gallon" as ambiguous, as that could mean "any combination of containers of 2% milk which aggregate to a gallon," but it might also mean that you have a specific reason for wanting the milk in a "one gallon container."

That leaves:

2:
=~s/Select the type 2% where the prices is <= other prices./Buy the le
+ast expensive 2% milk/;
[download]

Perhaps next time you go to the store to buy apples you should watch out for the oranges. Of course, I need to watch out too... for the absurdities to which my logic leads me.  ;-)