marble | functional reactive Node.js framework | Reactive Programming library

I am working out of "HTML5 and CSS5 Illustrated Complete" Second Edition by Sasha Vodnik. I did the initial Unit D example to a Tee, however logo styling and the positioning aren't applying correctly or at all.

Been getting this error when running 'ng build' on my Angular 12.0.2 project

I havet this codepen: https://codepen.io/sp2012/pen/VwpyWdp . Unfortunately, this code is too advanced for me. The game has three maps. I want to keep only the first map and when the game is finished, if you click on the map the game restarts.

The code follows:

This is the HTML:

I have an issue using the operator. Basically I have multiple payslips and I want to keep a debounce for each payslip and trigger a query. I want to subscribe to only the last query that succeed for a specific payslip and if a new request is triggered for this payslip before the previous one finished, I want to cancel the previous one.

Here's a sample marble diagram for what i'm looking for:

-----1----1-----1----3----3----3----3-----1---3---1---3---1------>

(magic operators for which I'm unclear)

-------------------1-------------------3-----1---3---1---3---1--->

I have debounce and query, which I like, but it does this:

-----1----1-----1----3----3----3----3-----1---3---1---3---1------>

debounce

-------------------1-------------------3--------------------1---->

Consider this angular component:

Problem: There are R red marbles, G green marbles and B blue marbles (R≤G≤B) Count the number of ways to arrange them in a straight line so that the two marbles next to each other are of different colors.

For example, R=G=B=2, the answer is 30.

I have tried using recursion and of course TLE:

Define r(R,B,G) to be the number of ways of arranging them where the first marble is red. Define b(R,B,G),g(R,B,G) respectively.
Then r(R, B, G) = b(R-1,B,G) + g(R-1,B,G)
And the answer is r(R,B,G) + b(R,B,G) + g(R,B,G)

But we can see that r(R, B, G) = b(B, R, G) ...
So, we just need a function f(x,y,z)=f(y,x−1,z)+f(z,x−1,y)
And the answer is f(x,y,z) + f(y,z,x) + f(z,x,y).

The time limit is 2 seconds.

I don't think dynamic is not TLE because R, G, B <= 2e5

I need help to create a RXJS stream which does the following.

Input: Keyboard inputevent a to z Emit value if:

• Character has NOT been used before
• Character has been used before but it is more than 5 seconds ago. else discard value

Marble diagram (- is 1 second):

I need to make a function that takes in a RXJS stream and return an accumulated result for last x minute (or a given timerange) I think this is probably easier to explain if I give an example:

I'll try to illustrate what I want with marble diagrams:

I want to group all related dependencies in one merge request (MR), as the examples below:

In one MR (all starting @angular/ except @angular/cli):