Try adding some code to the post -

class Solution:
    def longestCommonPrefix(self, strs: List[str]) -> str:
        if not strs:
            return ""
        if len(strs) == 1:
            return strs[0]

        strs.sort()
        p = ""
        for x, y in zip(strs[0], strs[-1]):
            if x == y:
                p += x
            else:
                break
        return p

Let’s try some math. As the source is a Markdown and not an RMarkdown file, one has to use special syntax to enable math rendering. Specifically, one can use

1. \\( <LaTeX> \\) and \\[ <LaTeX> \\],
2. `$<LaTeX>$` and `$$<LaTeX>$$`,

for inline and display mode, respectively. In the former, one can use \newline or \\\\\ instead of \\ to break lines.

Let \(x = 1\) and

\[ \begin{align} z^2 &= x^2 + y^2 \\
x &= 3 \newline y &= 4. \end{align} \]

Alternatively, let $x = 1$ and

$$ \begin{align} z^2 &= x^2 + y^2 \\ x &= 3 \\ y &= 4. \end{align} $$