Read a password code-golf string Your challenge is to read a "password" from standard input. To elaborate: Read a string s. For each of the characters in s, print a different character c. In realtime. Rules: c must be constant, i.e. it must be the same character. c can be any character, e...

use Python to calculate 11111111111111111111+22222222222222222222, but in one line of code with at most 15 characters. (Hint: each of those numbers is 20 digits long, so you have to find some other way to input those number)

code-golf regex Regex that matches everything but itself (Related) You must make a regex that matches everything except itself, including delimiters. For example, /PPCG/ must not match /PPCG/, but must match everything else, like something, and PPCG. If your language allows compiling regexes ...

Print all matching leaves code-golf natural-language parsing In Natural Language Processing, we sometimes interpret sentences as being context-free languages, and therefore as having a certain tree structure, also called constituency trees, or parse trees. These trees are sometimes written down ...

Consider the string 160615051. It can be "triangulated" as such: 1 606 15051 Then, each row is a palindrome. Also note that each side on the perimeter is also a palindrome: 1 | 1 | 6 | 6 | 1 | 1 | 15051 Therefore, this string can be considered to be a fully...