intersect | Find the intersection of two arrays | Data Manipulation library

I need to find the intersection of two arrays and print out the number of elements in the intersection of the two arrays. I must also account for any duplicate elements in both the arrays. So, I decide to take care of the duplicate elements by converting the two arrays into sets and then take the intersection of both the sets. However, I encounter a segmentation fault when I run my code. I'm not sure where this occurs, any way to fix this?

So I was really ripping my hair out why two different sessions of R with the same data were producing wildly different times to complete the same task. After a lot of restarting R, cleaning out all my variables, and really running a clean R, I found the issue: the new data structure provided by vroom and readr is, for some reason, super sluggish on my script. Of course the easiest thing to solve this is to convert your data into a tibble as soon as you load it in. Or is there some other explanation, like poor coding praxis in my functions that can explain the sluggish behavior? Or, is this a bug with recent updates of these packages? If so and if someone is more experienced with reporting bugs to tidyverse, then here is a repex showing the behavior cause I feel that this is out of my ballpark.

I'm developing a simple navigator with mapbox API for Android. I'm creating some routes using https://docs.mapbox.com/playground/directions/ playground and i would like to use the generated JSON to generate a DirectionsRoute object. So i call DirectionsRoute.fromJson() but when i do it, the application crashes with this error:

In ElasticSearch, what's the rough implementation for an AND-style boolean query where the fields are term types? Does ElasticSearch run filter queries separately on each of the field, and then find their intersections?

For example, if I have something like

I have a line line intersection function (infinite lines) of which both lines are defined by two points.

It does not seem to find the correct intersection point but I don't know where I have gone wrong. I created the function following the math explanation on Wikipedia:

https://en.m.wikipedia.org/wiki/Line%E2%80%93line_intersection#Given_two_points_on_each_line

This is my attempt at making the function from the math:

I'm working on a collision system for my game, however I can't get it to work, if I add more than one wall (which is the object I'm rendering) the collision system doesn't work and I can get through the block.

However if I leave only one wall the collision works correctly, or if at the end of the loop I add a break; the collision works but only on the first wall of the map, the others don't get the collision.

Would anyone know how to solve this? I've been trying to solve it for 2 days and I couldn't.

I have a dataset with various dataframes named "data_t1", "data_t2", ...., "data_t10".

Some of those dataframes share the same variables. Therefore I am trying to find out which variables are shared by each two df.

Instead of comparing the column names of each df with the column names of all the other dataframes manually, i tried to find matching column names by coding a for loop. This is my code so far:

I am trying to change background video on scroll, using react-intersection-observer. When inView changes to true, useEffect must change state to sample2, and send new video to startscreen, where it's using as background video with position fixed. State is changing, but video is still the same.

//Startscreen

I'm trying to produce a cumulative incidence plot for a competing hazards survival analysis using plot() in R. For some reason, the plot that is produced has a legend that I have not called. The legend is intersecting with the lines on my graph and I can't figure out how to get rid of it. Please help!

My code is as follows: