Output with the same length as the code

Question

In this challenge, you should write a program or function which takes no input and prints or returns a string with the same number of bytes as the program itself. There are a few rules:

• You may only output bytes in the printable ASCII range (0x20 to 0x7E, inclusive), or newlines (0x0A or 0x0D).
• Your code must not be a quine, so the code and the output must differ in at least one byte.
• Your code must be at least one byte long.
• If your output contains trailing newlines, those are part of the byte count.
• If your code requires non-standard command-line flags, count them as usual (i.e. by adding the difference to a standard invocation of your language's implementation to the byte count), and the output's length must match your solution's score. E.g. if your program is ab and requires the non-standard flag -n (we'll assume it can't be combined with standard flags, so it's 3 bytes), you should output 5 bytes in total.
• The output doesn't always have to be the same, as long as you can show that every possible output satisfies the above requirements.
• Usual quine rules don't apply. You may read the source code or its size, but I doubt this will be shorter than hardcoding it in most languages.

You may write a program or a function and use any of the standard methods of providing output. Note that if you print the result, you may choose to print it either to the standard output or the standard error stream, but only one of them counts.

You may use any programming language, but note that these loopholes are forbidden by default.

This is code-golf, so the shortest valid answer – measured in bytes – wins.

Leaderboard

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Answer 1

Jelly, 1 byte

V

Quite a few Jelly one byters - this is one - it evaluates the left argument which, when nothing is provided as input, defaults to zero which in turn evaluates to zero and the result is implicitly printed, a 0.

Try it online!

In fact, of the 256 bytes in the code-page there are only 95 that do not currently produce a different one byte output within the specified range when run as a full program; these are (as code-page characters in byte order):

¡¢£¦©½¿€ÇÑÞßçıȷñ÷þ"#&',-./0123456789:;?@IMRTVZ\`dmpstxyz{}~°³⁴⁵⁹ƓƈɠḶỌṬḊĖİĿṄȮṖṘẆẊṃọṣṭḃḟḣŀṁṗṡẋż’“

Notes:

• Most of the 1-byte programs print a 0 (no-ops / yielding a list with a single zero in, which prints a 0), most others print a 1 (0=0 and the like)

• Ọ is the one program which does yield a different byte, but one which is out of range as per the specification - it produces the null-byte (casts the 0 to character)

• ⁶ produces a space (a literal)

• ⁷ produces a line feed (a literal)

• Some bytes that do work now may not do so in the future - there are a fair few bytes being reserved (I believe) for niladic values which, when assigned, are almost certainly not going to produce one-byte output.

Answer 2

Ruby, 5 4 3 bytes

_{Crossed out 4 is still 4 ;(}

p$*

Prints [] (empty array) then a newline

Try it online!

Answer 3

APL, 2 bytes

-1

Prints ¯1 _{(the - is the Minus monad, whereas ¯ is the High minus negative indicator)}.

Answer 4

C#, 22 16 bytes

()=>$"{1L<<50}";

-6 bytes thanks to Orjan Johansen, using long instead of int.

Outputs

1125899906842624

Alternately, if you allow an arbitrary parameter to be passed into the lambda:

C#, 21 15 bytes

_=>$"{1L<<49}";

Outputs

562949953421312

Answer 5

Cubix, 6 4 bytes

@"Ou

Try it online

Cubified

  @
" O u .
  .

This pushes the string Ou. to the stack, Outputs the top character (.) as a character code (46), does a u-turn to the right, Outputs again, and exits with @.

Answer 6

Excel, 7 bytes

=9^7&""

Produces a 7 digit number and then appends empty string

Uses general idea from pajonk in their answer [although obviously not the language trick :)]

Answer 7

NodeJS REPL, 4 bytes

Did someone say REPLs are languages?

*;;;

→ ..._

(the underscore is actually a space character).

For anyone not familiar with the Node REPL, it thinks my program isn't complete, so it's prompting for the rest of the line.

Answer 8

JavaScript (ES6), 9 bytes

_=>""+1E8

Returns 1 * 10^8, or 100000000.

If I can return a number instead of a string, _=>1E5 is 6 bytes.

f=
_=>""+1E8

console.log(f())

Answer 9

QBasic 4.5, 1 byte

?

This prints nothing. Followed by a newline.

Answer 10

bash, 48 bytes

bash bash bash bash bash bash! bash! bash! bash!

Output:

/bin/bash: /bin/bash: cannot execute binary file

Answer 11

R, 3 2 bytes

-T

Outputs:

-1

Old 3 byte answers:

Many examples, such as:

1/0
F/F
3^6

Outputs respectively:

Inf
NaN
729

Try it online!

Answer 12

JavaScript (ES6), 17 11 bytes

f=_=>"g="+f

---

Try it

f=_=>"g="+f
console.log("Function source: f="+f)
console.log("Function length: "+(""+f).length+" + 2 (for variable assignment) = "+((""+f).length+2))
console.log("Function output: "+f())
console.log("Output length: "+f().length)
console.log("Output type: "+typeof f())

Answer 13

><>, 4 bytes

"on;

Try it online!

Outputs ;110

Answer 14

Python 2, 10 bytes

Try it online

print 9**9

Outputs 10 bytes:

387420489
*newline*

---

There are other 10-byte answers with decimals and power. I like this one for e in the output:

print.3**8

Output:

6.561e-05
*newline*

---

Same 10 bytes, but for division (there are 5 versions):

.1/64 = 0.0015625
.3/64 = 0.0046875
.5/64 = 0.0078125
.7/64 = 0.0109375
.9/64 = 0.0140625


print.1/64

outputs:

0.0015625
*newline*

Answer 15

Python 3, 53 bytes

s='s=%r;print("0"*~-len(s%%s))';print("0"*~-len(s%s))

Try it online!

This must be the most quine-like answer ever.

Answer 16

dc, 2 bytes

Kp

Try it online!

Pushes the current precision on the stack (which is 0) and prints it with a trailing newline.

Answer 17

Fourier, 1 byte

o

Try it FourIDE!

_{Note, TIO.run outputs a trailing newline}

Outputs the value of the accumulator, 0.

More interesting programs:

2P15o

Try it on FourIDE!

Outputs 2¹⁵, 32768.

---

4^do

Try it on FourIDE!

Outputs the current year (doesn't work if used before 1000 AD).

---

999**999o

Try it on FourIDE!

Outputs 997002999. The ** is undefined behaviour in Fourier. The way I think it works is A**B = A*A*B.

Answer 18

Alice, 5 bytes

g/@O

Try it online!

Prints:

103
g

Explanation

This was quite fun to figure out. :)

g   Pop two implicit zeros from the stack and retrieve the code point at that
    location in the code. That's the 'g' itself, so we're pushing 103.
/   Reflect to SE. Switch to Ordinal. The IP bounces diagonally up and down
    through the code.
O   Implicitly convert the 103 to "103" and print it with a trailing linefeed.
    Bounce off the top right corner and move back.
/   Reflect to W/ Switch to Cardinal.
g   Push 103 again.
    The IP wraps back to the last column
O   Interpret the 103 as a code point and print the corresponding character.
    This prints 'g'.   
@   Terminate the program.

Answer 19

AWK, 21 bytes

BEGIN{printf"%21s",0}

Try it online!

Simply prints:

                    0

The 0 could of course be any digit. No new line is printed, since that would add 2 bytes.

Answer 20

Underload, 6 bytes

()aaaS

Try it online!

Prints ((())).

() pushes an empty string to the stack. a "stringifies" it by wrapping it in (...) so after aaa we get (((()))). S prints that string (without the outermost parentheses, so we get only three pairs).

Answer 21

Perl 5, 9 bytes

print$"x9

Prints 9 spaces, no newline.

Explanation

$" contains a " " by default. x9 uses the repetition operator to "multiply" the string by 9.

Answer 22

Powershell, 38 bytes

Just for fun, an answer that returns different output each time it's called.

[System.Guid]::NewGuid().ToString("B")

Prints a GUID surrounded with braces ("B"), such as:

{24cc14a3-ada4-4fcd-8a08-ec419b00f22d}

Answer 23

C (modern Linux), 19 bytes

main(){raise(11);}

Output (with newline):

Segmentation fault 

How it works:

SIGSEGV is defined as 11 in /usr/include/asm-generic/signal.h. Therefore, raise(11) raises SIGSEGV, and when SIGSEGV is raised on Linux, all execution stops and Segmentation fault is printed.

20 bytes

main(){raise(2*2);}

Output (with newline):

Illegal instruction 

22 bytes

main(){raise(2*3-1);}

Output (with newline):

Trace/breakpoint trap

22 bytes

main(){raise(5*2+5);} 

Output (with newline):

User defined signal 1 

22 bytes

main(){raise(1?26:0);}

Output (with newline):

Virtual timer expired 

24 bytes

main(){raise(12*(1+1));}

Output (with newline):

CPU time limit exceeded 

25 bytes

main(){raise(5*5?5*5:0);}

Output (with newline):

File size limit exceeded 

25 bytes

main(){printf(raise(8));}

Output (with newline):

Floating point exception 

Answer 24

Pyramid Scheme, 32 bytes

^ ^ 
-^-
^-^
-^-
^-^
-^-
^-^
- -

Try it online!

Explanation

This may not look like pyramid scheme but it is. Each triangle looks like:

 ^
 -

This performs one of three operations

• If it has 2 args it pairs them together

• If it has 1 arg it returns it

• If it has 0 args it returns 0

So at the bottom we have two zeros, those are linked on the next level. On the next level two different pyramids grab the pair and then those pairs are paired together. This continues all the way up the pyramid. When we get to the top we have:

 ((((0,0),(0,0)),((0,0),(0,0))),(((0,0),(0,0)),((0,0),(0,0))))

Pyramid scheme's implicit output converts this to 16 zeros separated by newlines. That's 32 bytes.

Answer 25

Java, 82 bytes

interface M{static void main(String[]a){for(int i=0;i++<82;)System.out.print(1);}}

Output:

1111111111111111111111111111111111111111111111111111111111111111111111111111111111

Try it online!

Answer 26

Bash, 1 byte:

#

It sort of outputs a newline...although I don't know if the program gets credit for that or the Bash interpreter.

I'm a bit dubious that this counts, so:

Bash, 21 bytes

x=12345;echo $x$x$x$x

This is really terrible, I know. Are you allowed to call any standard program with Bash?

Answer 27

GNU Make, 24 21 bytes

$(sort $(value $(0)))

returns

$(0))) $(sort $(value

Complete makefile:

X=$(sort $(value $(0)))
$(info $(call X))

Answer 28

Pyth, 1 byte

k

It prints a new line character.

Explanation: k is just a variable initialized to '' (empty string), and by default Pyth prints the values of instructions which do nothing, followed by a new line character. In this case, it prints an empty string and then the new line character.

Test it online! (the online interpreter doesn't show the \n, you will have to install Pyth on your computer to actually see it)

Answer 29

Taxi, 540 bytes.

62 is waiting at Starchild Numerology.Go to Starchild Numerology:w 1 l 2 r 1 l 1 l 2 l.Pickup a passenger going to The Underground.Go to The Underground:w 1 r 2 r 1 r 2 l.[r]Switch to plan "e" if no one is waiting.Pickup a passenger going to Cyclone.Go to Cyclone:n 3 l 2 l.Pickup a passenger going to The Babelfishery.Pickup a passenger going to The Underground.Go to The Babelfishery:s 1 l 2 r 1 r.Pickup a passenger going to Post Office.Go to Post Office:n 1 l 1 r.Go to Fueler Up:n 1 r 1 l.Go to The Underground:n.Switch to plan "r".[e]

Try it online!

Ungolfed:

62 is waiting at Starchild Numerology.
Go to Starchild Numerology: west 1st left 2nd right 1st left 1st left 2nd left.
Pickup a passenger going to The Underground.
Go to The Underground: west 1st right 2nd right 1st right 2nd left.
[r]
Switch to plan "e" if no one is waiting.
Pickup a passenger going to Cyclone.
Go to Cyclone: north 3rd left 2nd left.
Pickup a passenger going to The Babelfishery.
Pickup a passenger going to The Underground.
Go to The Babelfishery: south 1st left 2nd right 1st right.
Pickup a passenger going to Post Office.
Go to Post Office: north 1st left 1st right.
Go to Fueler Up: north 1st right 1st left.
Go to The Underground: north.
Switch to plan "r".
[e]

It prints the integers 61 through 1 in descending order and with a decimal and 6 trailing zeros:

61.00000060.00000059.00000058.00000057.00000056.00000055.00000054.00000053.00000052.00000051.00000050.00000049.00000048.00000047.00000046.00000045.00000044.00000043.00000042.00000041.00000040.00000039.00000038.00000037.00000036.00000035.00000034.00000033.00000032.00000031.00000030.00000029.00000028.00000027.00000026.00000025.00000024.00000023.00000022.00000021.00000020.00000019.00000018.00000017.00000016.00000015.00000014.00000013.00000012.00000011.00000010.0000009.0000008.0000007.0000006.0000005.0000004.0000003.0000002.0000001.000000

Answer 30

PowerShell, 2 bytes

+1

The upvote program. This give the output of 1 and a trailing newline to get 2 bytes. I am unsure if the operation is adding 1 to nothing or if it is rendering the positive integer of 1. Either way the result is the same.