12:22 AM
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You are the first engineer in a hot new startup, Lexographical. Our company is making waves by digitizing and indexing all words, real or not. The core of our product... Our secret sauce... Well, that's why we hired you :) Because we're bleeding edge, we're enforcing the latest standards. Even t...

3 hours later…
3:43 AM
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Magic card trick: Hide information by flipping cards (This is inspired by a series of questions on puzzles.stackexchange.com: 10, 8, 7) Fix two integers m and u. Your task is to perform the following magic trick: A Magician brings a pack of m distinct cards, and leaves the room. In their abs...

3 hours later…
7:04 AM
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Background My user ID is 78410, or \$1 0 0 1 1 0 0 1 0 0 1 0 0 1 0 1 0_2\$. One interesting property of this number is that, in binary, it doesn't have three consecutive identical digits, and yet it has a substring \$100100100\$ which is three copies of \$100\$. So, I define a Bubbler number...

9 hours later…
3:50 PM
huh, it turns out that 100,000 rep is a community milestone. who knew?

1 hour later…
4:57 PM
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Convert an integer to Japanese/Chinese numerals I don't like the wording of the title, and this system is, to my knowledge, used in Japan and China, and I don't want to prioritize a country. Suggestions welcome! Your task is to convert an integer from 1 to \$10^{52}-1\$ (inclusive). The charac...

1 hour later…
6:21 PM
@Neil Are you referring to the mail sent by SE when someone is reaching 100k? Apparently, they were still signed 'Robert Cartaino' after the chap left SE. :-p Hopefully it has been changed now.

2 hours later…
8:49 PM
@Arnauld When did he left? In Nov 2019 the emails were still signed by him

9:29 PM
@LuisMendo In mid-January, I believe.

@Arnauld Juan Garza signed mine
also, end of an era: I just shut down a VM I booted up 3 years ago to the minute. I'd been using save states to keep it alive up until now but sadly VirtualBox decided to break existing save states with the next version.
I used to use that VM for code golf; it still had my tabs open from up to 3 years ago when I last used it for that. These days I only use it to read certain web comics.

Nice uptime :)

well, that's only wall clock uptime, real uptime would have been a bit less, since it would have been suspended while the host was rebooted for various reasons, and it would have lost several days if the host crashed, meaning I had to go back to the last save state
but as I needed to update VirtualBox any I thought three years wall clock uptime was a good a time as any to shut down

1 hour later…
10:45 PM
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I've found this problem on Hacker Rank. It asks the minimum number of swaps to make an unordered array consisting of non-duplicate sequential digits to order it. Example: Input [1,3,4,2] Output: 1 The way I tried to solve was first count all the digits that were in place, then find simple cas...

1 hour later…
11:46 PM
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Partition distance code-golf string I am very glad to provide a service to fill in the terrible gap in edit distance questions which codegolf.se has had. When there are as many edit distance questions as quine questions my job will be done --Anush Task Given a binary string consisting onl...

10

I went back in an old Flash game and was intrigued by this problem. Rules There is an $n\times n$ grid and a mouse entering on the entrance cell and exiting on the exit cell. The entrance cell and the exit cell is found outside on the grid, on the top and bottom side respectively. Y...

would counting the steps of a given maze be a good c-g question?