"Indentation is off, styles are mixed"
Step 1: Select "styles" in settings, select K&R, hit "format source". (eclipse for example). Yeah, if you fail to do step 1 periodically in your code, you already miss his 1st notion.
Writing may initially feel like a great analogy for s/w development, but writing also includes a heavy emphasis on "creativity" and style, which breaks the analogy. Just saying. From my experience, having done a few interviews recently from these furloughs is: use it or lose it... (having been out of hardcore development for 2 yrs). Training is important in these times.
With so many languages and mathematical philosophies behind them nowadays, you also need to stick with one for good code practices. Like talking about dynamically typed in C++ to polymorphism in hard real time--so many choices of tools today.