this problem is dank
This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
Implement a ROT13 cipher
Sum of diagonal of a square matrix
Given a 4x4 matrix, swap the two middle columns
Duplicate a character
Is the input divisible by 3?
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