"Hello, World!"
Introduction
The classic "Hello, World" challenge. What more can I say?
Rules
- Program takes no input.
- Program outputs
Hello, World!with an optional trailing newline. No other output is accepted.
Shortest submission in bytes wins.
Shakespeare Programming Langua …
4y ago
Vyxal, 2 bytes KH Th …
4y ago
PHP, 13 bytes Hello, Wo …
4y ago
HQ9+, 1 byte H Oblig …
4y ago
[Common Lisp], 26 22 bytes …
4y ago
QBASIC, 17, 16 bytes ?" …
3y ago
C# 9, 38 bytes System.C …
3y ago
Javascript V8, 888 bytes ```j …
4y ago
Perl 5 `-E`, 18 bytes ``` …
3y ago
[Python 2], 20 bytes …
4y ago
[C# (.NET Core)], 60 bytes …
3y ago
05AB1E, 7 bytes ”Ÿ™,‚ï! …
4y ago
LOLCODE, 37 bytes HAI 1 …
4y ago
[C++ (gcc)], 43 bytes …
4y ago
R, 20 bytes ``` cat("Hello …
4y ago
[Bash], 18 bytes ec …
4y ago
SOGL, 10 bytes ╥‰⅜,(ε ‘ū …
4y ago
///, 13 bytes ``` Hello, W …
3y ago
[PowerShell], 15 bytes …
3y ago
[RoadLang], 59 bytes …
4y ago
AppleScript, 15 bytes " …
4y ago
[JavaScript (V8)], 28 bytes …
4y ago
[ARBLE], 15 bytes " …
4y ago
Japt, 11 bytes `HÁM, W …
4y ago
Raku, 19 bytes ``` "Hello, W …
4y ago
J, 15 bytes ``` 'Hello, Wo …
3y ago
[dc], 16 bytes [Hello, …
3y ago
[Seriously], 1 byte H …
3y ago
[Unlambda], 40 bytes `` …
3y ago
[Haskell], 25 bytes …
3y ago
Turing Machine.io, 202 bytes …
3y ago
Scala, 42 bytes object>e …
3y ago
[C# (.NET Core)], 67 bytes …
3y ago
Rockstar, 19 bytes say …
3y ago
PureScript, 25 bytes ``` m …
3y ago
Swift, 23 bytes ```swift p …
3y ago
Kotlin, 34 bytes ```kotlin …
3y ago
[Forth (gforth)], 16 bytes …
3y ago
HTML, 26 13 bytes ``` Hell …
3y ago
[C (gcc)], 30 bytes …
5mo ago
[K (oK)], 15 bytes "Hel …
5mo ago
[AWK], 2 bytes $0 Tr …
5mo ago
C (gcc), 46 bytes ```cpp pri …
2y ago
Z80 Assembler, 50 bytes ``` …
2y ago
JavaScript V8, 26 bytes ``` …
2y ago
SOS, 155 Bytes !+!-!!+! …
2y ago
[shortC], 16 bytes AJ"H …
3y ago
[jq] `--null-input` `--raw-out …
3y ago
[SQLite], 21 bytes sele …
3y ago
[Emoji], 24 bytes 💬Hell …
3y ago
[Sclipting], (UTF-16) 18 bytes …
3y ago
[Java (JDK)], 80 bytes …
3y ago
[Chef], 558 485 bytes H …
3y ago
[Forget], 319 bytes pus …
3y ago
Lean, 64 bytes ```lean def …
3y ago
[!@#$%^&()+], 17 bytes …
3y ago
[Pyth], 14 bytes "Hello …
3y ago
Bash, 21 Bytes ```bash pri …
3y ago
[Charcoal], 13 bytes He …
3y ago
Java, 37 Bytes ```java v-> …
3y ago
[Lua], 20 bytes pri …
3y ago
61 answers
SOS, 155 Bytes
!+!-!!+!-!!!!+!!-!!+!-!+!-!+!!-!+!!-!!!+!!-!+!!-!!!+!!-!+!!!!-!!+!-!+!!-!!!!+!-!!!!!!+!-!+!-!+!!!-!+!!-!+!!!!-!+!!!-!!+!-!!+!!-!+!!-!!!+!!-!!+!-!!+!-!!!!+!
Explanation:
Each ! outputs a single bit. That bit is 0 if the current stack is empty, and 1 otherwise. Initially the stack is empty. + adds something (an empty stack) to it, and - removes it. As soon as 8 bits are output, the corresponding byte is sent to stdout. Therefore the sequence up to the 8th !, !+!-!!+!-!!! outputs the bit sequence 01001000, which is the ASCII code for the letter H.
The last character uses the fact that if at the end of the program less than 8 bits are output, the value is left-padded with zeros, and the resulting byte is output. So with comments (and spaces to make the output commands line up), the program reads like this:
!+!-! !+!-! ! ! Output 01001000, i.e. H
!+! !-! !+!-!+! Output 01100101, i.e. e
-!+! !-!+! !-! ! Output 01101100, i.e. l
!+! !-!+! !-! ! Output 01101100, i.e. l
!+! !-!+! ! ! ! Output 01101111, i.e. o
-! !+!-!+! !-! ! Output 00101101, i.e. comma
! !+!-! ! ! ! ! Output 00100000, i.e. space
!+!-!+!-!+! ! ! Output 01010111, i.e. W
-!+! !-!+! ! ! ! Output 01101111, i.e. o
-!+! ! !-! !+!-! Output 01110010, i.e. r
!+! !-!+! !-! ! Output 01101100, i.e. l
!+! !-! !+!-! ! Output 01100100, i.e. d
+!-! ! ! !+! Output 00100001, i.e. exclamation mark
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