##R, 27 12 bytes
R, 27 12 bytes
EDIT : New version, from an excellent idea from @Jarko Dubbeldam
LETTERS[T*T]
Quite a funny challenge !
Basically, this takes the 26th
element of the reversed vector containing the uppercase letters (LETTERS
, which is a R's built-in vector)
Previous versions (same number of bytes) :
L=LETTERS;rev(L)[length(L)]
rev((L=LETTERS))[length(L)]