What is the hardest language

Answer 1

Also BrainF**k

{{>>{~~~~{-<}~~~~~~~~~{-<-<}}<<} </(<<<){[<]}:>:{>>{~~~~~~~~{<}~{>}}<<}\ ~>{{~{v}}>>>v{~}^<<<}/(<<<){[<<]}:>:{>>{~~~~~~~~{<<}~{>>}}<<}\ ~{>>{vvvvvvvv~~~~~~~~~~~~~~~}<<}~{>>{vvvv~~~~~~~~~~~~~}<<}~ {>>{^^^^^^^^^^~}<<}~{>>{v~~~~~~~{{<<}~}v{~}vvvvvvv{~{>>}}^^^^^^~~~ {{<<}~}vvvv{~{>>}}v~~~}<<}~<{{^^^}}~ {>>{vvvvvv~{{<<}~{>>}}^^^^^^^~~~~~~~~~~~{{<<}~{v>}}^^^^^^}} /{{()}}{[<<<<]}:>:{{~v}}\}

which is Hello world

Answer 2

It's definetly Malbologe!

Malbolge was specifically designed to be almost impossible to use, via a counter-intuitive 'crazy operation', base-three arithmetic, and self-altering code.

Malbolge was so difficult to understand when it arrived that it took two years for the first Malbolge program to appear. Indeed, the author himself has never written a single Malbolge program. The first program was not written by a human being: it was generated by a beam search algorithm designed by Andrew Cooke and implemented in Lisp.

And a little example ;):

This program reads a string from a user and prints that string.

(aBA@?>=<;:9876543210/.-,JH)('&%$#"!~}|{zy\J6utsrq
ponmlkjihgJ%dcba`_^]\[ZYXWVUTSRQPONMLKJIHGF('C%$^
K~<;4987654321a/.-,\*)
j
!~%|{zya}|{zyxwvutsrqSonmlO
jLhg`edcba`_^]\[ZYXWV8TSRQ4
ONM/KJIBGFE>CBA@?>=<;{9876w
43210/.-m+*)('&%$#"!~}|{zy\
wvunslqponmlkjihgfedcEa`_^A
\>ZYXWPUTSRQPONMLKJIH*FEDC&
A@?>=<;:9876543210/.-m+*)(i
&%$#"!~}|{zyxwvutsrqpRnmlkN
ihgfedcba`_^]\[ZYXWVU7SRQP3
NMLKJIHGFEDCBA@?>=<;:z8765v
3210/.-,+*)('&%$#"!~}_{zyx[
vutsrqjonmlejihgfedcba`_^]@
[ZYXWVUTSRo

~Kamil

Answer 3

Binary.

Answer 4

10)Perl
9)Objective-C
8)JavaScript
7)C++
6)Scala
5)Prolog
4)Lisp
3)Haskell
2)Assembly Language
1)APL