Learn Linux: Good Idea Or Not? (2018 & Beyond)

Hey, what’s up? John Sonmez here from simpleprogrammer.com. Tired of pushy recruiters sending you LinkedIn requests for jobs you have no interest in? Tired of blasting out resumes into the dark? If so, you should check out Hired.com. Hired.com flips job searching on its head by having top employers like Facebook come to you after […]

Decorated Wrappers – Design of Computer Programs

So here’s an idea. Let’s get rid of this line, and instead, let’s declare that n_ary is a decorator. We’ll write a definition of what it means to be a decorator in terms of updating wrappers. Then we’ll be done, and we’ve done it once and for all. We can apply it to n_ary, and […]

Calculating Costs – Design of Computer Programs

Now, we got rid of the times in the successor function, so we’ve got to put them back in someplace. I’m going to generalize a little bit, and instead of talking about times, I’m going to talk about costs for a path. I’m just thinking of maybe we might want to do some other problems […]

Lambda – Design of Computer Programs

Let’s consider a formula–I’m going to write a new one. Let’s say You equals Me-squared. We’re treating these formulas as strings. Now when we substitute numbers into this, we get something like 123 equals 45-squared. What happens when we call eval on this string? What eval has to do is it takes it’s input, which […]

Office Hours 2 – Design of Computer Programs

Hi. Welcome to the second office hours. Again we had a lot of really good questions in the forum, so let’s get started. The first question came from Matthew Atkinson. He has heard that you shouldn’t use functions like eval and exec, which we did use in unit 2. He wants to know why shouldn’t […]

Fill In Function – Design of Computer Programs

Now I want to talk about a strategy for defining the function fillin,which takes an unfilled formula and returns all the possible filled in formulas. What do we have to do? Well, let’s consider a formula, and I’m going to take one that’s simpler than one we’ve seen before. I’m going to take the formula […]

Exact Instructions Challenge – THIS is why my kids want to kill me. | Josh Darnit

– You’re not even making any sense. He’s already ruined it on purpose, he knows how to make one. (funky music) – What’s up, the internet? You know what? I’m hungry. I could really go for a peanut butter and jelly sandwich. Do you guys think you can write down some instructions and teach me […]

Using Max Solution – Design of Computer Programs

[Norvig] And the answer is simple. We take the maximum out of all the hands, with the key equal to the hand_rank. I like this definition because it’s so simple– the whole body is just 1 line– and also because it corresponds so closely to the problem specification. The specification says, return the highest ranking […]

Paths Actions States – Design of Computer Programs

Here’s a quick exercise. Why don’t we just define two functions– path_states, which takes a path and returns a list of the states, and path_actions, which takes a path and returns a list of the actions. The path is interleaved–it contains both–and we want to pull just the states or just the actions.

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