Questions tagged [popularity-contest]
A popularity-contest is a competition where the answer with the highest vote tally (upvotes minus downvotes) wins. As these are frequently closed, read the tag info and post your challenge to the sandbox first.
408 questions
29 votes
27 answers
5k views
Creating the mythical XAND Gate
a XAND b a AND b, but not at the same time. I've always found the idea of an XAND gate amusing. Many would claim such a gate can not exist, but I suspect they're just not trying hard enough. ...
- 3,853
33 votes
8 answers
4k views
Rig The Lottery, but Don't Get Caught
Edit: Please note there is currently a vote to close this coding challenge due to a complaint that it may be technically violating a decade old rule for this site. There is currently a discussion in ...
- 3,853
1 vote
2 answers
351 views
The many ways to skin a `cat` [duplicate]
The well known cat command simply copies its stdin directly to stdout unchanged. But there are plenty of other commandline tools that exist... What other commands ...
- 143
19 votes
3 answers
975 views
Universal Unicode Clock
Plot contrivance You wake up to find that something has gone horribly wrong! Your time machine has malfunctioned and you are lost sometime between June 2022 and October 1991. You check the computer ...
- 103k
9 votes
5 answers
639 views
(Σ*)² ⟲ Σ* (aka Round-Trip a String Pair) [closed]
This is a challenge I thought of recently which I think is not hard but allows for a wide range of possible solutions. Seems like a perfect fit for the creativity of PPCG users :) Your Task Define two ...
- 727
18 votes
28 answers
2k views
Output a unique sign sequence
A sign sequence is an infinite sequence consisting entirely of \$1\$ and \$-1\$. These can be constructed a number of ways, for example: Alternating signs: \$1, -1, 1, -1, ...\$ \$-1\$ for primes, \$...
- 50.9k
35 votes
4 answers
3k views
Make The Finest Magic Code Square
In math a magic square is an N×N grid of numbers from 1 to N2 such that every row, column, and diagonal sums to the same total. For example here's a 3×3 magic square: In this challenge we'...
- 90.7k
3 votes
6 answers
493 views
Nested lists as printable 2D objects [closed]
I don't know if something like this exists already (and I'm not finding the right key words) but if not, it felt like it could be an interesting coding puzzle. The challenge is, to take an ...
- 141