The other day someone asked this on IRC.
Everyone pounced on the problem and after a lot of discussion about how strange the 265 number is and whether he didn't mean 256 we decided it was impossible to solve in just eight characters.
The shortest solution I could come up with was this:
~(1 << 8) - 8;
Shifting left for eight places gives you 257, negating gives -257, then you just subtract 8 and voila, you have -265.
Except it's 9 characters long ... not a solution.
So, come up with the answer yet?
Here's some solutions:
- -1060/4 is just 7 characters
- -256-9 is just 6 characters
- _-530/2 _is only 6 characters as well
- ~264 is just 4 characters (by @zidarsk8)
And so on, you get the picture. Shameful as it is, I couldn't come up with an answer at all. Never even occurred to me. I think this happens to a lot of developers who have been in the game for too long, we immediately try creating elegant solutions where simple ones will do.
If you solved this on your own, congratulations. You are better than me.
- Ten things I wish I knew earlier about the Linux command line
- Yesod, AngularJS and Fay
- Converting function to bitwise only?
- A critical review of ECMAScript 6 template strings
Learned something new?
Read more Software Engineering Lessons from Production
I write articles with real insight into the career and skills of a modern software engineer. "Raw and honest from the heart!" as one reader described them. Fueled by lessons learned over 20 years of building production code for side-projects, small businesses, and hyper growth startups. Both successful and not.
Subscribe below 👇
Software Engineering Lessons from Production
Join Swizec's Newsletter and get insightful emails 💌 on mindsets, tactics, and technical skills for your career. Real lessons from building production software. No bullshit.
"Man, love your simple writing! Yours is the only newsletter I open and only blog that I give a fuck to read & scroll till the end. And wow always take away lessons with me. Inspiring! And very relatable. 👌"
Senior Mindset Book
Get promoted, earn a bigger salary, work for top companiesLearn more
Have a burning question that you think I can answer? Hit me up on twitter and I'll do my best.
Who am I and who do I help? I'm Swizec Teller and I turn coders into engineers with "Raw and honest from the heart!" writing. No bullshit. Real insights into the career and skills of a modern software engineer.
Want to become a true senior engineer? Take ownership, have autonomy, and be a force multiplier on your team. The Senior Engineer Mindset ebook can help 👉 swizec.com/senior-mindset. These are the shifts in mindset that unlocked my career.
Curious about Serverless and the modern backend? Check out Serverless Handbook, for frontend engineers 👉 ServerlessHandbook.dev
Want to Stop copy pasting D3 examples and create data visualizations of your own? Learn how to build scalable dataviz React components your whole team can understand with React for Data Visualization
Did someone amazing share this letter with you? Wonderful! You can sign up for my weekly letters for software engineers on their path to greatness, here: swizec.com/blog
By the way, just in case no one has told you it yet today: I love and appreciate you for who you are ❤️