Transpose quine In this quine variant, your program must output its source code transposed across the diagonal from the top left to the bottom right. For example: your program on four lines outputs yof ono u u r r      p l r i o n g e r s a m The whitespace in the output is no...

We occasionally have challenges which consist of multiple separate subchallenges, whose individual scores are simply combined at the end. These are often known as "golf courses". While these are often quite popular they do have some problems. Mainly it's not clear how we should deal with people c...

The challenge is to identify the missing number in a string of undelimited integers. You are given a string of digits (valid input will match the regular expression ^[1-9][0-9]+$). The string represents a sequence of integers. For example, 1234567891011. All numbers in the sequence are in the...

Given an input of a string with bytes that may be in either binary, octal, or hex, output the string's ASCII equivalent. Input will be provided in the following format, for example: 501200100001147 which represents 0x50 0o120 0b01000011 0x47 which is equivalent (in ASCII) to PPCG Binary...