The max() is not enough

Clash Royale CLAN TAG#URR8PPP

up vote
2
down vote

favorite

Intro

A friend posed this question today in a slightly different way - "Can a single [Python] command determine the largest of some integers AND that they aren't equal?".

While we didn't find a way to do this within reasonable definitions of "a single command", I thought it might be a fun problem to golf.

 Challenge

"Return the largest of a list of integers if-and-only-if they are not all equal."

More specifically:

Given a string containing only a comma-separated list of integers:

• If they are all equal, return/output nothing


• Else, return/output the largest

Rules

• The input must be a string containing only a comma-separated list of integers


• The output must be either nothing (no output of any kind), or else the largest element from the input, represented as it is in the input

Entries may be a full program or just a function, provided you provide some way to test them!

Assumptions

• Assume input list elements may be more than one digit but no larger than
  ( 2³² − 1 )


• Assume the input list has no more than a million elements


• Assume the input will not include negative values


• Assume the input will never be empty

^{For the avoidance of doubt, the explanation of the challenge given just after "More specifically" shall supersede the statement of the challenge above it ("Return the largest...").}

 Examples

(1) All equal:

Input: 1,1
Output:

(2) Dissimilar:

Input: 1,2
Output: 2

(3) Zero!:

Input: 0,0,0,0,0,0,0,1,0,0
Output: 1

(4) Random:

Input: 7,3,8,4,8,3,9,4,6,1,3,7,5
Output: 9

(5) Larger numbers, larger list:

Input: 627,3894,863,5195,7789,5269,8887,3262,1448,3192
Output: 8887

Additional examples:

(6) All equal, larger list:

Input: 7,7,7,7,7,7,7,7,7
Output:

(7) All equal, larger list, larger numbers:

Input: 61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976
Output:

(8) Not equal, larger list, larger numbers:

Input: 96185,482754,96185,96185,96185,96185,96185,96185,7,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,961185,96185,96185,96185
Output: 961185 (sorry)

Scoring

This is code-golf, so the code with the shortest number of bytes wins!

code-golf

share|improve this question

asked 1 hour ago

ElectricWarr

193

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
  – DJMcMayhem♦
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
  – Arnauld
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
  – Shaggy
  29 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Arnauld Please vote based on the challenge not on user that posted it.
  – W W
  29 mins ago
  

  
  
  
  

add a comment | 

up vote
2
down vote

favorite

Intro

A friend posed this question today in a slightly different way - "Can a single [Python] command determine the largest of some integers AND that they aren't equal?".

While we didn't find a way to do this within reasonable definitions of "a single command", I thought it might be a fun problem to golf.

 Challenge

"Return the largest of a list of integers if-and-only-if they are not all equal."

More specifically:

Given a string containing only a comma-separated list of integers:

• If they are all equal, return/output nothing


• Else, return/output the largest

Rules

• The input must be a string containing only a comma-separated list of integers


• The output must be either nothing (no output of any kind), or else the largest element from the input, represented as it is in the input

Entries may be a full program or just a function, provided you provide some way to test them!

Assumptions

• Assume input list elements may be more than one digit but no larger than
  ( 2³² − 1 )


• Assume the input list has no more than a million elements


• Assume the input will not include negative values


• Assume the input will never be empty

^{For the avoidance of doubt, the explanation of the challenge given just after "More specifically" shall supersede the statement of the challenge above it ("Return the largest...").}

 Examples

(1) All equal:

Input: 1,1
Output:

(2) Dissimilar:

Input: 1,2
Output: 2

(3) Zero!:

Input: 0,0,0,0,0,0,0,1,0,0
Output: 1

(4) Random:

Input: 7,3,8,4,8,3,9,4,6,1,3,7,5
Output: 9

(5) Larger numbers, larger list:

Input: 627,3894,863,5195,7789,5269,8887,3262,1448,3192
Output: 8887

Additional examples:

(6) All equal, larger list:

Input: 7,7,7,7,7,7,7,7,7
Output:

(7) All equal, larger list, larger numbers:

Input: 61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976
Output:

(8) Not equal, larger list, larger numbers:

Input: 96185,482754,96185,96185,96185,96185,96185,96185,7,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,961185,96185,96185,96185
Output: 961185 (sorry)

Scoring

This is code-golf, so the code with the shortest number of bytes wins!

code-golf

share|improve this question

asked 1 hour ago

ElectricWarr

193

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
  – DJMcMayhem♦
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
  – Arnauld
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
  – Shaggy
  29 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Arnauld Please vote based on the challenge not on user that posted it.
  – W W
  29 mins ago
  

  
  
  
  

add a comment | 

up vote
2
down vote

favorite

up vote
2
down vote

favorite

Intro

A friend posed this question today in a slightly different way - "Can a single [Python] command determine the largest of some integers AND that they aren't equal?".

While we didn't find a way to do this within reasonable definitions of "a single command", I thought it might be a fun problem to golf.

 Challenge

"Return the largest of a list of integers if-and-only-if they are not all equal."

More specifically:

Given a string containing only a comma-separated list of integers:

• If they are all equal, return/output nothing


• Else, return/output the largest

Rules

• The input must be a string containing only a comma-separated list of integers


• The output must be either nothing (no output of any kind), or else the largest element from the input, represented as it is in the input

Entries may be a full program or just a function, provided you provide some way to test them!

Assumptions

• Assume input list elements may be more than one digit but no larger than
  ( 2³² − 1 )


• Assume the input list has no more than a million elements


• Assume the input will not include negative values


• Assume the input will never be empty

^{For the avoidance of doubt, the explanation of the challenge given just after "More specifically" shall supersede the statement of the challenge above it ("Return the largest...").}

 Examples

(1) All equal:

Input: 1,1
Output:

(2) Dissimilar:

Input: 1,2
Output: 2

(3) Zero!:

Input: 0,0,0,0,0,0,0,1,0,0
Output: 1

(4) Random:

Input: 7,3,8,4,8,3,9,4,6,1,3,7,5
Output: 9

(5) Larger numbers, larger list:

Input: 627,3894,863,5195,7789,5269,8887,3262,1448,3192
Output: 8887

Additional examples:

(6) All equal, larger list:

Input: 7,7,7,7,7,7,7,7,7
Output:

(7) All equal, larger list, larger numbers:

Input: 61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976
Output:

(8) Not equal, larger list, larger numbers:

Input: 96185,482754,96185,96185,96185,96185,96185,96185,7,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,961185,96185,96185,96185
Output: 961185 (sorry)

Scoring

This is code-golf, so the code with the shortest number of bytes wins!

code-golf

share|improve this question

asked 1 hour ago

ElectricWarr

193

Intro

A friend posed this question today in a slightly different way - "Can a single [Python] command determine the largest of some integers AND that they aren't equal?".

While we didn't find a way to do this within reasonable definitions of "a single command", I thought it might be a fun problem to golf.

 Challenge

"Return the largest of a list of integers if-and-only-if they are not all equal."

More specifically:

Given a string containing only a comma-separated list of integers:

• If they are all equal, return/output nothing


• Else, return/output the largest

Rules

• The input must be a string containing only a comma-separated list of integers


• The output must be either nothing (no output of any kind), or else the largest element from the input, represented as it is in the input

Entries may be a full program or just a function, provided you provide some way to test them!

Assumptions

• Assume input list elements may be more than one digit but no larger than
  ( 2³² − 1 )


• Assume the input list has no more than a million elements


• Assume the input will not include negative values


• Assume the input will never be empty

^{For the avoidance of doubt, the explanation of the challenge given just after "More specifically" shall supersede the statement of the challenge above it ("Return the largest...").}

 Examples

(1) All equal:

Input: 1,1
Output:

(2) Dissimilar:

Input: 1,2
Output: 2

(3) Zero!:

Input: 0,0,0,0,0,0,0,1,0,0
Output: 1

(4) Random:

Input: 7,3,8,4,8,3,9,4,6,1,3,7,5
Output: 9

(5) Larger numbers, larger list:

Input: 627,3894,863,5195,7789,5269,8887,3262,1448,3192
Output: 8887

Additional examples:

(6) All equal, larger list:

Input: 7,7,7,7,7,7,7,7,7
Output:

(7) All equal, larger list, larger numbers:

Input: 61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976,61976
Output:

(8) Not equal, larger list, larger numbers:

Input: 96185,482754,96185,96185,96185,96185,96185,96185,7,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,96185,961185,96185,96185,96185
Output: 961185 (sorry)

Scoring

This is code-golf, so the code with the shortest number of bytes wins!

code-golf

code-golf

share|improve this question

asked 1 hour ago

ElectricWarr

193

share|improve this question

asked 1 hour ago

ElectricWarr

193

share|improve this question

share|improve this question

asked 1 hour ago

ElectricWarr

193

asked 1 hour ago

ElectricWarr

193

asked 1 hour ago

ElectricWarr

193

193

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
  – DJMcMayhem♦
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
  – Arnauld
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
  – Shaggy
  29 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Arnauld Please vote based on the challenge not on user that posted it.
  – W W
  29 mins ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
  – DJMcMayhem♦
  1 hour ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
  – Arnauld
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
  – Shaggy
  29 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Arnauld Please vote based on the challenge not on user that posted it.
  – W W
  29 mins ago
  

  
  
  
  

2

2

Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
– DJMcMayhem♦
1 hour ago

Is it OK to throw an error when the list contains all equal values? And can we output a null value (such as None in python) rather than outputting nothing? Also, why must the input be a string rather than a list? And what do you mean by the largest element from the input, represented as it is in the input
– DJMcMayhem♦
1 hour ago

2

2

Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
– Arnauld
1 hour ago

Please wait for updates / clarifications before downvoting right away an otherwise decent challenge from a new contributor.
– Arnauld
1 hour ago

I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
– Shaggy
29 mins ago

I'd suggest loosening the input requirements to allow for an array/list of integers, too. Are we guaranteed that the list will contain at least 2 elements? Can we output a consistent, non-numeric value instead of nothing if all integers are equal?
– Shaggy
29 mins ago

@Arnauld Please vote based on the challenge not on user that posted it.
– W W
29 mins ago

@Arnauld Please vote based on the challenge not on user that posted it.
– W W
29 mins ago

add a comment | 

11 Answers
11

active

oldest

votes

up vote
1
down vote

CJam, 16 13 bytes

q',/:iL|$1>W>

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

add a comment | 

up vote
1
down vote

Neim, 4 bytes

𝐐𝐎Ξ𝐠

Explanation:

 Ξ If
𝐐 all elements are equal
 𝐎 not
 then
 𝐠 get greatest element

Try it online!

share|improve this answer

answered 1 hour ago

Okx

12k27100

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
  – Shaggy
  27 mins ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

Python 2, 42 bytes

a=input();print('',max(a))[len(set(a))!=1]

Try it online!

This assumes that the input has at least 1 element.

_{This is my first code golf. It could probably be improved ;P}

share|improve this answer

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

up vote
0
down vote

JavaScript (Node.js), 53 bytes

Does a function returning '' count as no output? Sure this can be improved upon...

s=>(a=s.split`,`).every(e=>a[0]==e)?'':Math.max(...a)

Try it online!

share|improve this answer

answered 1 hour ago

Chris M

1615

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
  – Shaggy
  20 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Shaggy nice! I started off using Set but couldn't get it as short as that
  – Chris M
  16 mins ago
  

  
  
  
  

add a comment | 

up vote
0
down vote

R, 50 bytes

x=scan();`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

If the input HAS to be a string...83 bytes.

x=as.numeric(el(strsplit(scan(,""),',')));`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

add a comment | 

up vote
0
down vote

Python 2, 44 bytes

k=eval(input())
if~-len(set(k)):print max(k)

Try it online!

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

add a comment | 

up vote
0
down vote

Ohm v2, 9 bytes

Ul1E?Oq¿↑

Try it online!
Explanation:

Ul1E?Oq¿↑
U Uniquify input
 l Get length
 1E Push whether length is equak to 1
 ?Oq If so immediately quit
 ¿↑ Else print maximum

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

add a comment | 

up vote
0
down vote

Octave, 28 bytes

Returns the maximum (a number, which is an 1x1 matrix) or an empty (1x0) matrix.

@(a)max(a)(1+all(a(1)==a):1)

Try it online!

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

add a comment | 

up vote
0
down vote

Perl 6, 26 23 bytes

.max if .Set>1o*.EVAL

Try it online!

Returns an empty slip if everything is equal.

share|improve this answer

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

add a comment | 

up vote
0
down vote

K4, 38 bytes

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]

Test Cases:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"1,2,4,4"
,4
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"4,4,4,4"
q)
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,3,8,4,8,3,9,4,6,1,3,7,5"
,9
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,7,7,7,7,7,7,7,7,7,7,7,7"
q)

I'm not very fluent in any of the k variants available on TiO, so no online example available, I'll try to come up with one though

Explanation

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]
 ",":x //split string on commas
 7h$ //cast strings to long
 -48 //they'll be from ascii format, so compensate
 ?: //get distinct list 
 t: //set list to variable t 
 #: //get count of t
 1= //check if count t = 1
$[expr;`True;`False] is the conditional format
 ;; //return nothing if true
 x@>xt //if false, sort t descending
 *: //return first value

Can probably be golfed down more, not a fan of having to use that makeshift max function at the end.

EDIT: If the commas are a problem, it can be fixed with two more bytes:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:,/x@>xt]"1,2,4,4"
4
 ,/ //joins the single element lists into one

Taking the total to 40, but the comma before the number simply means that it's a single element list as opposed to an atom.

share|improve this answer

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

add a comment | 

up vote
0
down vote

Japt, 16 bytes

This would be 9 if not for the unnecessarily strict input format.

Assumes the string contains at least 2 integers.

q, mn
â ÊÉ?Urw:P

Try it

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

add a comment | 

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11 Answers
11

active

oldest

votes

11 Answers
11

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
1
down vote

CJam, 16 13 bytes

q',/:iL|$1>W>

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

add a comment | 

up vote
1
down vote

CJam, 16 13 bytes

q',/:iL|$1>W>

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

add a comment | 

up vote
1
down vote

up vote
1
down vote

CJam, 16 13 bytes

q',/:iL|$1>W>

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

CJam, 16 13 bytes

q',/:iL|$1>W>

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

share|improve this answer

share|improve this answer

edited 1 hour ago

edited 1 hour ago

edited 1 hour ago

answered 1 hour ago

Esolanging Fruit

8,09932373

answered 1 hour ago

Esolanging Fruit

8,09932373

answered 1 hour ago

Esolanging Fruit

8,09932373

8,09932373

add a comment | 

add a comment | 

up vote
1
down vote

Neim, 4 bytes

𝐐𝐎Ξ𝐠

Explanation:

 Ξ If
𝐐 all elements are equal
 𝐎 not
 then
 𝐠 get greatest element

Try it online!

share|improve this answer

answered 1 hour ago

Okx

12k27100

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
  – Shaggy
  27 mins ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

Neim, 4 bytes

𝐐𝐎Ξ𝐠

Explanation:

 Ξ If
𝐐 all elements are equal
 𝐎 not
 then
 𝐠 get greatest element

Try it online!

share|improve this answer

answered 1 hour ago

Okx

12k27100

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
  – Shaggy
  27 mins ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

up vote
1
down vote

Neim, 4 bytes

𝐐𝐎Ξ𝐠

Explanation:

 Ξ If
𝐐 all elements are equal
 𝐎 not
 then
 𝐠 get greatest element

Try it online!

share|improve this answer

answered 1 hour ago

Okx

12k27100

Neim, 4 bytes

𝐐𝐎Ξ𝐠

Explanation:

 Ξ If
𝐐 all elements are equal
 𝐎 not
 then
 𝐠 get greatest element

Try it online!

share|improve this answer

answered 1 hour ago

Okx

12k27100

share|improve this answer

share|improve this answer

answered 1 hour ago

Okx

12k27100

answered 1 hour ago

Okx

12k27100

answered 1 hour ago

Okx

12k27100

12k27100

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
  – Shaggy
  27 mins ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
  – Shaggy
  27 mins ago
  

  
  
  
  

Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
– Shaggy
27 mins ago

Currently, the input must be a comma-delimited string of integers but I've asked if we can take an array instead.
– Shaggy
27 mins ago

add a comment | 

up vote
1
down vote

Python 2, 42 bytes

a=input();print('',max(a))[len(set(a))!=1]

Try it online!

This assumes that the input has at least 1 element.

_{This is my first code golf. It could probably be improved ;P}

share|improve this answer

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

up vote
1
down vote

Python 2, 42 bytes

a=input();print('',max(a))[len(set(a))!=1]

Try it online!

This assumes that the input has at least 1 element.

_{This is my first code golf. It could probably be improved ;P}

share|improve this answer

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

up vote
1
down vote

up vote
1
down vote

Python 2, 42 bytes

a=input();print('',max(a))[len(set(a))!=1]

Try it online!

This assumes that the input has at least 1 element.

_{This is my first code golf. It could probably be improved ;P}

share|improve this answer

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

Python 2, 42 bytes

a=input();print('',max(a))[len(set(a))!=1]

Try it online!

This assumes that the input has at least 1 element.

_{This is my first code golf. It could probably be improved ;P}

share|improve this answer

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this answer

share|improve this answer

edited 8 mins ago

edited 8 mins ago

edited 8 mins ago

answered 25 mins ago

Arnav Borborah

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 25 mins ago

Arnav Borborah

1114

answered 25 mins ago

Arnav Borborah

1114

1114

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

New contributor

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

Arnav Borborah is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

add a comment | 

up vote
0
down vote

JavaScript (Node.js), 53 bytes

Does a function returning '' count as no output? Sure this can be improved upon...

s=>(a=s.split`,`).every(e=>a[0]==e)?'':Math.max(...a)

Try it online!

share|improve this answer

answered 1 hour ago

Chris M

1615

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
  – Shaggy
  20 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Shaggy nice! I started off using Set but couldn't get it as short as that
  – Chris M
  16 mins ago
  

  
  
  
  

add a comment | 

up vote
0
down vote

JavaScript (Node.js), 53 bytes

Does a function returning '' count as no output? Sure this can be improved upon...

s=>(a=s.split`,`).every(e=>a[0]==e)?'':Math.max(...a)

Try it online!

share|improve this answer

answered 1 hour ago

Chris M

1615

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
  – Shaggy
  20 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Shaggy nice! I started off using Set but couldn't get it as short as that
  – Chris M
  16 mins ago
  

  
  
  
  

add a comment | 

up vote
0
down vote

up vote
0
down vote

JavaScript (Node.js), 53 bytes

Does a function returning '' count as no output? Sure this can be improved upon...

s=>(a=s.split`,`).every(e=>a[0]==e)?'':Math.max(...a)

Try it online!

share|improve this answer

answered 1 hour ago

Chris M

1615

JavaScript (Node.js), 53 bytes

Does a function returning '' count as no output? Sure this can be improved upon...

s=>(a=s.split`,`).every(e=>a[0]==e)?'':Math.max(...a)

Try it online!

share|improve this answer

answered 1 hour ago

Chris M

1615

share|improve this answer

share|improve this answer

answered 1 hour ago

Chris M

1615

answered 1 hour ago

Chris M

1615

answered 1 hour ago

Chris M

1615

1615

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
  – Shaggy
  20 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Shaggy nice! I started off using Set but couldn't get it as short as that
  – Chris M
  16 mins ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
  – Shaggy
  20 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @Shaggy nice! I started off using Set but couldn't get it as short as that
  – Chris M
  16 mins ago
  

  
  
  
  

1

1

A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
– Shaggy
20 mins ago

A very quick improvement: tio.run/##y0osSyxOLsosKNHNy09J/Z9m@7/…
– Shaggy
20 mins ago

@Shaggy nice! I started off using Set but couldn't get it as short as that
– Chris M
16 mins ago

@Shaggy nice! I started off using Set but couldn't get it as short as that
– Chris M
16 mins ago

add a comment | 

up vote
0
down vote

R, 50 bytes

x=scan();`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

If the input HAS to be a string...83 bytes.

x=as.numeric(el(strsplit(scan(,""),',')));`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

add a comment | 

up vote
0
down vote

R, 50 bytes

x=scan();`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

If the input HAS to be a string...83 bytes.

x=as.numeric(el(strsplit(scan(,""),',')));`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

add a comment | 

up vote
0
down vote

up vote
0
down vote

R, 50 bytes

x=scan();`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

If the input HAS to be a string...83 bytes.

x=as.numeric(el(strsplit(scan(,""),',')));`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

R, 50 bytes

x=scan();`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

If the input HAS to be a string...83 bytes.

x=as.numeric(el(strsplit(scan(,""),',')));`if`(length(unique(x))==1,cat(""),max(x))

Try it online!

share|improve this answer

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

share|improve this answer

share|improve this answer

edited 1 hour ago

edited 1 hour ago

edited 1 hour ago

answered 1 hour ago

Robert S.

47912

answered 1 hour ago

Robert S.

47912

answered 1 hour ago

Robert S.

47912

47912

add a comment | 

add a comment | 

up vote
0
down vote

Python 2, 44 bytes

k=eval(input())
if~-len(set(k)):print max(k)

Try it online!

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

add a comment | 

up vote
0
down vote

Python 2, 44 bytes

k=eval(input())
if~-len(set(k)):print max(k)

Try it online!

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

add a comment | 

up vote
0
down vote

up vote
0
down vote

Python 2, 44 bytes

k=eval(input())
if~-len(set(k)):print max(k)

Try it online!

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

Python 2, 44 bytes

k=eval(input())
if~-len(set(k)):print max(k)

Try it online!

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

share|improve this answer

share|improve this answer

answered 51 mins ago

Chas Brown

4,3111319

answered 51 mins ago

Chas Brown

4,3111319

answered 51 mins ago

Chas Brown

4,3111319

4,3111319

add a comment | 

add a comment | 

up vote
0
down vote

Ohm v2, 9 bytes

Ul1E?Oq¿↑

Try it online!
Explanation:

Ul1E?Oq¿↑
U Uniquify input
 l Get length
 1E Push whether length is equak to 1
 ?Oq If so immediately quit
 ¿↑ Else print maximum

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

add a comment | 

up vote
0
down vote

Ohm v2, 9 bytes

Ul1E?Oq¿↑

Try it online!
Explanation:

Ul1E?Oq¿↑
U Uniquify input
 l Get length
 1E Push whether length is equak to 1
 ?Oq If so immediately quit
 ¿↑ Else print maximum

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

add a comment | 

up vote
0
down vote

up vote
0
down vote

Ohm v2, 9 bytes

Ul1E?Oq¿↑

Try it online!
Explanation:

Ul1E?Oq¿↑
U Uniquify input
 l Get length
 1E Push whether length is equak to 1
 ?Oq If so immediately quit
 ¿↑ Else print maximum

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

Ohm v2, 9 bytes

Ul1E?Oq¿↑

Try it online!
Explanation:

Ul1E?Oq¿↑
U Uniquify input
 l Get length
 1E Push whether length is equak to 1
 ?Oq If so immediately quit
 ¿↑ Else print maximum

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

share|improve this answer

share|improve this answer

answered 49 mins ago

ThePlasmaRailgun

987

answered 49 mins ago

ThePlasmaRailgun

987

answered 49 mins ago

ThePlasmaRailgun

987

987

add a comment | 

add a comment | 

up vote
0
down vote

Octave, 28 bytes

Returns the maximum (a number, which is an 1x1 matrix) or an empty (1x0) matrix.

@(a)max(a)(1+all(a(1)==a):1)

Try it online!

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

add a comment | 

up vote
0
down vote

Octave, 28 bytes

Returns the maximum (a number, which is an 1x1 matrix) or an empty (1x0) matrix.

@(a)max(a)(1+all(a(1)==a):1)

Try it online!

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

add a comment | 

up vote
0
down vote

up vote
0
down vote

Octave, 28 bytes

Returns the maximum (a number, which is an 1x1 matrix) or an empty (1x0) matrix.

@(a)max(a)(1+all(a(1)==a):1)

Try it online!

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

Octave, 28 bytes

Returns the maximum (a number, which is an 1x1 matrix) or an empty (1x0) matrix.

@(a)max(a)(1+all(a(1)==a):1)

Try it online!

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

share|improve this answer

share|improve this answer

answered 45 mins ago

flawr

25.8k562178

answered 45 mins ago

flawr

25.8k562178

answered 45 mins ago

flawr

25.8k562178

25.8k562178

add a comment | 

add a comment | 

up vote
0
down vote

Perl 6, 26 23 bytes

.max if .Set>1o*.EVAL

Try it online!

Returns an empty slip if everything is equal.

share|improve this answer

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

add a comment | 

up vote
0
down vote

Perl 6, 26 23 bytes

.max if .Set>1o*.EVAL

Try it online!

Returns an empty slip if everything is equal.

share|improve this answer

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

add a comment | 

up vote
0
down vote

up vote
0
down vote

Perl 6, 26 23 bytes

.max if .Set>1o*.EVAL

Try it online!

Returns an empty slip if everything is equal.

share|improve this answer

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

Perl 6, 26 23 bytes

.max if .Set>1o*.EVAL

Try it online!

Returns an empty slip if everything is equal.

share|improve this answer

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

share|improve this answer

share|improve this answer

edited 42 mins ago

edited 42 mins ago

edited 42 mins ago

answered 1 hour ago

Jo King

16.9k24193

answered 1 hour ago

Jo King

16.9k24193

answered 1 hour ago

Jo King

16.9k24193

16.9k24193

add a comment | 

add a comment | 

up vote
0
down vote

K4, 38 bytes

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]

Test Cases:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"1,2,4,4"
,4
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"4,4,4,4"
q)
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,3,8,4,8,3,9,4,6,1,3,7,5"
,9
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,7,7,7,7,7,7,7,7,7,7,7,7"
q)

I'm not very fluent in any of the k variants available on TiO, so no online example available, I'll try to come up with one though

Explanation

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]
 ",":x //split string on commas
 7h$ //cast strings to long
 -48 //they'll be from ascii format, so compensate
 ?: //get distinct list 
 t: //set list to variable t 
 #: //get count of t
 1= //check if count t = 1
$[expr;`True;`False] is the conditional format
 ;; //return nothing if true
 x@>xt //if false, sort t descending
 *: //return first value

Can probably be golfed down more, not a fan of having to use that makeshift max function at the end.

EDIT: If the commas are a problem, it can be fixed with two more bytes:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:,/x@>xt]"1,2,4,4"
4
 ,/ //joins the single element lists into one

Taking the total to 40, but the comma before the number simply means that it's a single element list as opposed to an atom.

share|improve this answer

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

add a comment | 

up vote
0
down vote

K4, 38 bytes

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]

Test Cases:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"1,2,4,4"
,4
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"4,4,4,4"
q)
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,3,8,4,8,3,9,4,6,1,3,7,5"
,9
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,7,7,7,7,7,7,7,7,7,7,7,7"
q)

I'm not very fluent in any of the k variants available on TiO, so no online example available, I'll try to come up with one though

Explanation

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]
 ",":x //split string on commas
 7h$ //cast strings to long
 -48 //they'll be from ascii format, so compensate
 ?: //get distinct list 
 t: //set list to variable t 
 #: //get count of t
 1= //check if count t = 1
$[expr;`True;`False] is the conditional format
 ;; //return nothing if true
 x@>xt //if false, sort t descending
 *: //return first value

Can probably be golfed down more, not a fan of having to use that makeshift max function at the end.

EDIT: If the commas are a problem, it can be fixed with two more bytes:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:,/x@>xt]"1,2,4,4"
4
 ,/ //joins the single element lists into one

Taking the total to 40, but the comma before the number simply means that it's a single element list as opposed to an atom.

share|improve this answer

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

add a comment | 

up vote
0
down vote

up vote
0
down vote

K4, 38 bytes

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]

Test Cases:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"1,2,4,4"
,4
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"4,4,4,4"
q)
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,3,8,4,8,3,9,4,6,1,3,7,5"
,9
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,7,7,7,7,7,7,7,7,7,7,7,7"
q)

I'm not very fluent in any of the k variants available on TiO, so no online example available, I'll try to come up with one though

Explanation

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]
 ",":x //split string on commas
 7h$ //cast strings to long
 -48 //they'll be from ascii format, so compensate
 ?: //get distinct list 
 t: //set list to variable t 
 #: //get count of t
 1= //check if count t = 1
$[expr;`True;`False] is the conditional format
 ;; //return nothing if true
 x@>xt //if false, sort t descending
 *: //return first value

Can probably be golfed down more, not a fan of having to use that makeshift max function at the end.

EDIT: If the commas are a problem, it can be fixed with two more bytes:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:,/x@>xt]"1,2,4,4"
4
 ,/ //joins the single element lists into one

Taking the total to 40, but the comma before the number simply means that it's a single element list as opposed to an atom.

share|improve this answer

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

K4, 38 bytes

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]

Test Cases:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"1,2,4,4"
,4
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"4,4,4,4"
q)
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,3,8,4,8,3,9,4,6,1,3,7,5"
,9
q)k)$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]"7,7,7,7,7,7,7,7,7,7,7,7,7"
q)

I'm not very fluent in any of the k variants available on TiO, so no online example available, I'll try to come up with one though

Explanation

$[1=#:t:?:(7h$",":x)-48;;*:x@>xt]
 ",":x //split string on commas
 7h$ //cast strings to long
 -48 //they'll be from ascii format, so compensate
 ?: //get distinct list 
 t: //set list to variable t 
 #: //get count of t
 1= //check if count t = 1
$[expr;`True;`False] is the conditional format
 ;; //return nothing if true
 x@>xt //if false, sort t descending
 *: //return first value

Can probably be golfed down more, not a fan of having to use that makeshift max function at the end.

EDIT: If the commas are a problem, it can be fixed with two more bytes:

q)k)$[1=#:t:?:(7h$",":x)-48;;*:,/x@>xt]"1,2,4,4"
4
 ,/ //joins the single element lists into one

Taking the total to 40, but the comma before the number simply means that it's a single element list as opposed to an atom.

share|improve this answer

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

share|improve this answer

share|improve this answer

edited 19 mins ago

edited 19 mins ago

edited 19 mins ago

answered 48 mins ago

Thaufeki

1015

answered 48 mins ago

Thaufeki

1015

answered 48 mins ago

Thaufeki

1015

1015

add a comment | 

add a comment | 

up vote
0
down vote

Japt, 16 bytes

This would be 9 if not for the unnecessarily strict input format.

Assumes the string contains at least 2 integers.

q, mn
â ÊÉ?Urw:P

Try it

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

add a comment | 

up vote
0
down vote

Japt, 16 bytes

This would be 9 if not for the unnecessarily strict input format.

Assumes the string contains at least 2 integers.

q, mn
â ÊÉ?Urw:P

Try it

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

add a comment | 

up vote
0
down vote

up vote
0
down vote

Japt, 16 bytes

This would be 9 if not for the unnecessarily strict input format.

Assumes the string contains at least 2 integers.

q, mn
â ÊÉ?Urw:P

Try it

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

Japt, 16 bytes

This would be 9 if not for the unnecessarily strict input format.

Assumes the string contains at least 2 integers.

q, mn
â ÊÉ?Urw:P

Try it

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

share|improve this answer

share|improve this answer

answered 10 mins ago

Shaggy

17k21662

answered 10 mins ago

Shaggy

17k21662

answered 10 mins ago

Shaggy

17k21662

17k21662

add a comment | 

add a comment | 

 

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