Challenge

Write a C program which outputs binary values of all possible bytes(0-255) as e.g. '00001011\n' in the least space.

>>40
（ノ｀ー´）ノ Here, have a hug
Don't worry, I didn't know that either until >>16-san pointed it out (thank you!!).

You can think of it as:
replicate 4 "abc" => [w:x:y:z:[] | w = "abc", x = "abc", y = "abc", z = "abc"]
replicateM 4 "abc" => [w:x:y:z:[] | w <- "abc", x <- "abc", y <- "abc", z <- "abc"]
It's obvious this way.