Divide one number by another

Question

Challenge

Given two numbers, output their quotient. In other words, integer divide one number by another.

Both divisor/dividend will be under 10001. Division must be performed using integer division, rounding down.

Here are some example inputs and outputs:

5       1       5
-4      2       -2
4       -2      -2
6       2       3
16      4       4
36      9       4
15      2       7
17      3       5
43      5       8
500     5       100
500     100     5
10000   2       5000

Or as CSV:

5,1,5
-4,2,-2
4,-2,-2
6,2,3
16,4,4
36,9,4
15,2,7
17,3,5
43,5,8
500,5,100
500,100,5
10000,2,5000

Rules

Standard loopholes not allowed
You must use integer division, not floating point division
This is code-golf. Shortest answer wins, but will not be selected.
The second input (denominator) will never be equal to 0.

Why?

I'm interested in seeing answers in esoteric languages, like Brainfuck and Retina. Answers in regular languages will be trivial, however I would really like to see answers in these languages.

I will be giving a bounty of +50 reputation to a Retina answer.

Do we need to handle negative numbers? None of the test cases are negative, but the question only specifies denominator != 0. — DLosc, Commented Mar 31, 2017 at 20:14
You just invalidated almost all the interesting approaches... — Stewie Griffin, Commented Mar 31, 2017 at 20:33
I can't tell you the reason for the other downvotes, but mine is because I firmly believe that trivial questions like this are bad for the site. — Peter Taylor, Commented Mar 31, 2017 at 20:45

Community · Accepted Answer · 2020-06-17 09:04:33Z

3

Mathematica, 8 bytes

Quotient

Thanks to @JungHwanMin for reminding me there's a builtin.

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered Mar 31, 2017 at 19:59

Pavel

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powelles · Accepted Answer · 2017-03-31 20:19:57Z

3

JavaScript, 11 bytes

JavaScript doesn't have integers but using a bitwise or parses a float as a signed 32 bit integer.

a=>b=>a/b|0

Try it online

const f = a=>b=>a/b|0
alert(f(prompt())(prompt()))

edited Mar 31, 2017 at 20:19

answered Mar 31, 2017 at 19:57

powelles

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Community · Accepted Answer · 2020-06-17 09:04:33Z

2

C (GCC), 13 bytes

Doesn't work on all implementations, but that's OK.

f(a,b){a/=b;}

Try it on TIO!

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered Mar 31, 2017 at 20:04

betseg

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steenbergh · Accepted Answer · 2017-03-31 20:14:12Z

2

Pip, 4 bytes

a//b

Try it online!

Explanation:

      A and B are read implicitly from the cmd line
a//b  Calculate the int div of a and b (double slash == int div)
      Results of the last expression are printed implicitly.

answered Mar 31, 2017 at 20:14

steenbergh

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Business Cat · Accepted Answer · 2017-03-31 20:14:30Z

2

CJam, 3 bytes

q~/

Try it online!

answered Mar 31, 2017 at 20:14

Business Cat

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Community · Accepted Answer · 2020-06-17 09:04:33Z

2

아희(Aheui), 15 bytes

방방나망희

Try it here! (please copy and paste the code manually)

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered Mar 31, 2017 at 20:16

JungHwan Min

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Community · Accepted Answer · 2020-06-17 09:04:33Z

2

Python 2, 14 11 bytes

int.__div__

Try it online

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered Mar 31, 2017 at 20:04

mbomb007

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thegreatemu · Accepted Answer · 2017-03-31 20:51:54Z

2

Bash, 25 22 15 bytes

echo $(($1/$2))

Save to script, input numbers given at command line

Saved 3 bytes thanks to @betseg

edited Mar 31, 2017 at 20:51

answered Mar 31, 2017 at 20:44

thegreatemu

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1

\$\begingroup\$ Welcome to Programming Puzzles and Code Golf StackExchange! Nice first answer. Also, you can remove the space after the semicolon and the spaces inside parentheses. \$\endgroup\$
– betseg
Commented Mar 31, 2017 at 20:48

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steenbergh · Accepted Answer · 2017-08-03 07:14:35Z

2

QBIC, 8 bytes

::?a'\`b

Explanation:

::    get a and b from the cmd line
?     Print
a \ b the backslash does integer division, (opposed to the forward slash / for float div)
  ' ` however, the same symbol is used for ELSE. We need to escape it with ' and `

Note that the latest version of QBIC allows for an inline use of the : function, saving two bytes:

?:'\`:

edited Aug 3, 2017 at 7:14

answered Mar 31, 2017 at 20:07

steenbergh

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user75917user75917 · Accepted Answer · 2017-11-19 23:15:01Z

2

Aceto, 6 bytes

riri/p

ri takes input as integer
/ does integer division
p prints it

Try it online!

answered Nov 19, 2017 at 23:15

user75917

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Jörg Hülsermann · Accepted Answer · 2017-03-31 20:02:56Z

1

PHP, 23 Bytes

<?=$argv[1]/$argv[2]^0;

or

<?=$argv[1]/$argv[2]|0;

and for 29 Bytes

<?=intdiv($argv[1],$argv[2]);

answered Mar 31, 2017 at 20:02

Jörg Hülsermann

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steenbergh · Accepted Answer · 2017-03-31 20:15:34Z

1

Jelly, 1 byte

Try it online!

answered Mar 31, 2017 at 20:15

steenbergh

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P. Knops · Accepted Answer · 2017-04-03 19:55:46Z

1

05AB1E, 3 bytes

II÷

Try online

If you can reverse the input, it would work in 1 byte: ÷

answered Apr 3, 2017 at 19:55

P. Knops

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MD XF · Accepted Answer · 2017-06-14 16:12:15Z

1

Triangular, 6 bytes

$.$%_<

Try it online!

Formats into this triangle:

  $
 . $
% _ <

Without directionals and no-ops, the code looks like this: $$_%

$ - read input as integer
_ - divide
% - print

answered Jun 14, 2017 at 16:12

MD XF

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MD XF · Accepted Answer · 2017-07-11 22:49:18Z

1

Decimal, 12 bytes

81D81D44D301

Ungolfed:

81D   ; builtin 1 - read INT to stack
81D   ; builtin 1 - read INT to stack
44D   ; math divide (postfix /)
301   ; print from stack to output

Try it online!

edited Jul 11, 2017 at 22:49

answered Jun 5, 2017 at 2:46

MD XF

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lolad · Accepted Answer · 2019-04-22 07:05:43Z

1

Retina, 28 bytes

\d+
*
~`(_+) (_+)
K`$1$nC`$2

Try it online!

I'm quite new to Retina; I probably could have golfed this more.

Explanation:

Let's start with an input: 38 4

\d+
*

This turns the numbers into unary, so 4 is represented as ____, and 38 with 38 underscores.

~`...

This marks a stage that generates code to run afterwards

(_+) (_+)
K`$1$nC`$2

This is a replace stage to generate the division code; Firstly, it splits the string into the dividend (referenced as $1) and divisor (referenced as $2). Then, it returns the string:

K`{dividend as unary}
C`{divisor as unary}

The returned string is evaluated and the answer implicitly printed. It sets the working string to the dividend, and counts the matches of the divisor in it.

edited Apr 22, 2019 at 7:05

answered Apr 21, 2019 at 18:31

lolad

8427 silver badges17 bronze badges

1

\$\begingroup\$ 20 bytes after golfing: Try it online! \$\endgroup\$
– Neil
Commented Mar 7, 2021 at 12:01
\$\begingroup\$ Nice! I'd completely forgotten about this but that's an interesting golf \$\endgroup\$
– lolad
Commented Mar 7, 2021 at 16:28

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user85052user85052 · Accepted Answer · 2019-09-25 23:41:59Z

1

Keg, 3 bytes

¿¿/

Simply 2 nice inputs and then divides them.

TIO

answered Sep 25, 2019 at 23:41

user85052

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Neil · Accepted Answer · 2017-03-31 22:48:40Z

0

Batch, 16 bytes

@cmd/cset/a%1/%2

set/a doesn't print its output inside a batch script, so we have to fake it out by starting a new copy of the command processor.

answered Mar 31, 2017 at 22:48

Neil

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Community · Accepted Answer · 2020-06-17 09:04:33Z

0

GML, 30 bytes

return argument0 div argument1

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered May 18, 2018 at 4:15

Timtech

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Community · Accepted Answer · 2020-06-17 09:04:33Z

0

TI-Basic, 6 bytes

Input :iPart(X/Y

edited Jun 17, 2020 at 9:04

CommunityBot

1

answered May 18, 2018 at 4:18

Timtech

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Community · Accepted Answer · 2020-06-17 09:04:33Z

Retina, 40 38 bytes

\d+
*
(-?)(_+);(-?)(\2)*_*
$1$3$#4
--

Takes input in the format denominator;numerator. Also works for negative integers after the specs got changed, unlike the existing Retina answer.

-2 bytes thanks to @FryAmTheEggman thanks to a golf suggested in another Retina answer of mine.

Try it online.

Explanation:

Convert all numbers in the input to unary, replacing them with that amount of underscores:

\d+
*

Integer divide the two unary numbers (but with a decimal numbers as result), and filter all - to the front at the same time:

(-?)(_+);(-?)(\2)*_*
$1$3$#4

Remove any -- if present:

--

Jordan · Accepted Answer · 2022-12-04 20:31:02Z

0

J-uby, 2 bytes

🫤

:/

Attempt This Online!

answered Dec 4, 2022 at 20:31

Jordan

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anna328p · Accepted Answer · 2017-03-31 20:30:48Z

-1

Ruby, 10 bytes

->i,j{i/j}

Extremely simple. Lambda function that returns the value i/j.

edited Mar 31, 2017 at 20:30

answered Mar 31, 2017 at 19:59

anna328p

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5

\$\begingroup\$ -1, if an answer is extremely short and boring with just the code, you should add a link, or an explanation, or a comment on the code or something other than My answer's really boring, so blah blah blah. \$\endgroup\$
– DJMcMayhem
Commented Mar 31, 2017 at 20:25
\$\begingroup\$ @DJMcMayhem Fixed \$\endgroup\$
– anna328p
Commented Mar 31, 2017 at 20:31

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Stack Exchange Network

Divide one number by another

Challenge

Rules

Why?

23 Answers 23

Mathematica, 8 bytes

JavaScript, 11 bytes

Try it online

C (GCC), 13 bytes

Pip, 4 bytes

CJam, 3 bytes

아희(Aheui), 15 bytes

Python 2, 14 11 bytes

Bash, 25 22 15 bytes

QBIC, 8 bytes

Explanation:

Aceto, 6 bytes

PHP, 23 Bytes

Jelly, 1 byte

05AB1E, 3 bytes

Triangular, 6 bytes

Decimal, 12 bytes

Retina, 28 bytes

Keg, 3 bytes

Batch, 16 bytes

GML, 30 bytes

TI-Basic, 6 bytes

Retina, 40 38 bytes

J-uby, 2 bytes

Ruby, 10 bytes

Your Answer

Not the answer you're looking for? Browse other questions tagged
code-golf
number
arithmetic
or ask your own question.

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Divide one number by another

Challenge

Rules

Why?

23 Answers 23

Mathematica, 8 bytes

JavaScript, 11 bytes

Try it online

C (GCC), 13 bytes

Pip, 4 bytes

CJam, 3 bytes

아희(Aheui), 15 bytes

Python 2, 14 11 bytes

Bash, 25 22 15 bytes

QBIC, 8 bytes

Explanation:

Aceto, 6 bytes

PHP, 23 Bytes

Jelly, 1 byte

05AB1E, 3 bytes

Triangular, 6 bytes

Decimal, 12 bytes

Retina, 28 bytes

Keg, 3 bytes

Batch, 16 bytes

GML, 30 bytes

TI-Basic, 6 bytes

Retina, 40 38 bytes

J-uby, 2 bytes

Ruby, 10 bytes

Your Answer

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Not the answer you're looking for? Browse other questions tagged code-golfnumberarithmetic or ask your own question.

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Not the answer you're looking for? Browse other questions tagged
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