Ellipsoid surface area code-golf math geometry Related: Ellipse circumference Introduction An ellipsoid (Wikipedia / MathWorld) is a 3D object analogous to an ellipse on 2D. Its shape is defined by three principal semi-axes \$a,b,c\$: $$ \frac{x^2}{a^2} + \frac{y^2}{b^2} + \frac{z^2}{c^2} = 1 $$ ...

Clock Patience: win or lose? code-golfdecision-problemcard-gamesgame Clock Patience (a.k.a. Clock Solitaire) is a simple single-player card game that proceeds as follows: Take a shuffled, standard 52-card deck and deal 13 piles of four cards each, face down. The first 12 piles are arranged in th...

Mystery Numbers Challenge math I'm not outlining what the program should do, but here are some sample inputs and outputs: IO Test 1 Input: 102 Output: 10404 1061208 14002414191924244276669361796022272 Test 2 Input: 10 Output: 100 100000 Test 3 Input: 50 Output: 2500 312500000 312500000 Notes Only...

Task You are playing Hangman, and your opponent uses a simple but effective strategy: Each turn, from the remaining letters, they guess the letter that appears most frequently across all possible words. When multiple letters appear with the same maximum frequency, your opponent selects randomly ...

The kempner series is a series which sums the inverse of all positive integers which doesn't contain 9 in their base 10 representation (\$\frac{1}{1} + \frac{1}{2} + \frac{1}{3} + .. + \frac{1}{8} + \frac{1}{10} + ...\$). It can be shown that, unlike the hermonic series, it converges (to a value ...