github/perlweeklychallenge-club.git/challenge-136/abigail/bash, branch master

Check for even numbers.

2021-10-29T15:13:44+00:00

In week 136, part 1, if one or both numbers are odd, the pair
cannot be two-friendly.

Implement caching for week 136/part 2.

2021-10-27T18:01:33+00:00

For those language for which it was easy to make use of an associative
array/hash/mapping: AWK, Bash, Go, Java, Lua, Node.js, Perl, Python,
Ruby and Tcl.

Implementations left without caching: bc, C, Pascal, R, and Scheme.

Bash solution for week 136, part 2

2021-10-26T16:27:30+00:00

Use the same function to determine whether a number is a power of 2.

2021-10-26T15:42:52+00:00

We now use the same algorithm (but implemented in different languages)
to determine whether a number is a power of 2. This replaces the
preprocessed powers of 2, and lookup tables.

Use recursive algorithms for GCD

2021-10-26T11:47:47+00:00

Bash solution for week 136, part 1

2021-10-25T14:50:26+00:00