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I wish to create a Space Adjacency Matrix in R, preferably using ggplot/tidyverse for consistency with other scripts, but I am open to other solutions.

A Space Adjacency Matrix is used in interior and architectural design to illustrate relationships (adjacencies) between spaces within a building.

Each space in the building has a relationship (or lack of relationship) to every other space.

The input data is likely formatted similarly to this:

In the Linux manpage of strncpy I read:

If the length of src is less than n, strncpy() writes additional
null bytes to dest to ensure that a total of n bytes are written.

In this limit case (no \0 at the end of both strings) where n>4:

• I am searching a 2D grid for a word.
• We can search left/right and up/down.
• For example, in this grid, searching for "abef" starting at (0,0) will return True

Example (grid1):

• The recursive version gives expected results (see dfs_rec() below).
• The iterative version also gives expected results (see dfs_iter() below). However, in this version I am making a copy of the visited set onto the stack at every node.

• Is there a way to avoid the copy (visited.copy()) in the iterative version, and add/remove to a single visited set as in the recursive version?

• In dfs_rec() there is a single set() named visited, and it's changed via visited.add((row,col)) and visited.remove((row,col))

• But in dfs_iter() I am pushing visited.copy() onto the stack each time, to prevent nodes from being marked as visited incorrectly.

• I have seen some iterative examples where they use a single visited set, without making copies or removing anything from the set, but that does not give me the right output in these examples (see dfs_iter_nocopy() using grid3 below).

As an example, take this grid:

• Say you search for "abexxxxxx" (covering the entire grid), the expected output will be True

• But dfs_iter_nocopy() will give incorrect output on one of grid2 or grid3 (they are just mirrored, one will pass and one will fail), depending on the order you push nodes onto the stack.

• What's happening is, when you search for "abexxxxxx", it searches a path like this (only hitting 5 x's, while it needs 6).

• It marks the x at (1,0) as visited, and when it's time to search that branch, it stops at (1,0), like this:

I want to realize a function as the question title described, for example:

I have a NumPy array containing a list which contains strings of various lengths:

Why does this code fail if there is no cls. before __TEXT

I have a tibble:

I am stumbled on a regular expression and unable to fix it after trying several different ways.

Here is the link to the RegEx with sample input and below is the RegEx and Sample text for quick reference:

Regex:

I want to include two Text in a Row where the first Text's width is upto the start of 2nd Text, like this

I am trying Modifier weight but the result achieved is not the same. Is there a way to do it by using Row itself and not ConstraintLayout.

EDIT :