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You can find some interesting grafitti on the east side of I-25, just south of exit 262 (Colorado 392, Windsor, CO) in Colorado.

The Peripheral, William Gibson, 2015. ISBN 0670921556.

Revelation Space by Alastair Reynolds, 2000, ISBN 978-0-316-46244-0, Orbit Books print edition 2020.

Another puzzle courtesy the Daily Coding Problem email list.

Daily Coding Problem: Problem #1578 [Hard]

This problem was asked by Facebook.

Given an array of numbers of length N, find both the minimum and maximum using less than 2 * (N - 2) comparisons.

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Github repo for my solution.

Across the Space Frontier, Joseph Kaplan, Wernher von Braun, Heinz Haber, Willey Ley, Oscar Schatchter, Fred Whipple, edited by Cornelius Ryan, Viking Press, 1952.

In a sense, this book is part of a prose exposition, and elaboration of von Braun’s The Mars Project, the technical appendix of Project Mars,

I have a copy from the second printing, June 1953

It snowed at my place the night of October 29, 2023. The next day I saw the most Colorado thing possible.

Possibly the worst booze I’ve ever had.

My roomba, Dobby, got stuck again.

This is from the Daily Coding Problem email list. The owners of that list haven’t sent out a problem that caught my imagination in quite a while.

Daily Coding Problem: Problem #1553 [Hard]

This problem was asked by Airbnb.

You come across a dictionary of sorted words in a language you’ve never seen before. Write a program that returns the correct order of letters in this language.

For example, given ['xww', 'wxyz', 'wxyw', 'ywx', 'ywz'], you should return ['x', 'z', 'w', 'y'].

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Github repo for my solution. Feel free to look it over, try it and email me (bediger8@gmail.com) if you notice anything.