Grid ASCII art code golf

Question

Challenge

Create the shortest program that meets the requirements

Requirements

1. The code must generate a 5x5 grid of 0s, like so:

   00000
   00000
   00000
   00000
   00000
   

2. The code must accept an input (column, row, character). The grid must change accordingly:

   Start:

   00000
   00000
   00000
   00000
   00000
   

   Input:

   (2,5,*)
   

   Output:

   0*000
   00000
   00000
   00000
   00000
   

   (Note: the bottom-left corner is position 1,1.)

3. The program must return an error message other than the grid if the row/column input is not 1,2,3,4, or 5. This can be any message of your choice (as long as it's not the grid), so 0 is an acceptable error-output.

4. The program must work with all printable ASCII characters (of a US keyboard).

THE WINNER

The winner will be the person who has the shortest code and fulfills all requirements. If more than one answer works and has the same (shortest) length, the person who answered first will be the winner.

• Rod: The program must return an error message. What error message? Can the program return 0 for error and the grid for success?
• george: Where is the origin on the matrix? does it need to be zero or one indexed?
• Erik the Outgolfer: Welcome to PPCG, by the way.
• Luis Mendo: he program must work with all characters on the US keyboard Why not just ASCII? I do not even know the characters of a US keyboard, and that doesn't add anything to the challenge
• Conor O'Brien: @LuisMendo I think the US keyboard is ASCII, or is at least a subset.

Answer 1

Dyalog APL, (削除) 17 (削除ここまで) (削除) 13 (削除ここまで) 10 bytes

Prompts for an enclosed array containing (row, column) and then for a character. Gives INDEX ERROR on faulty input.

⊖⍞@⎕⊢5 5⍴0

Try it online!

⊖ flip upside-down the result of

⍞ inputted-character

@ replacing the content at position

⎕ evaluated-input (enclosed row, column)

⊢ of

5 5⍴ ×ばつ5 array of

0 zeros

• Conor O'Brien: Is ⊢ necessary? I think in this case it's redundant.
• Adám: @ConorO'Brien @ConorO'Brien if it isn't there, the parser sees (⊂⎕)5 5 as a single 3-element array – the argument to ⍴.
• wilx: That is 13 Unicode characters, not 13 bytes, isn't it?
• Adám: @wilx Click on the word bytes!
• Dave Jones: This answer is the winner.

Answer 2

Ruby, (削除) 157 (削除ここまで) 149 bytes

g=(1..5).map{[0]*5}
loop{puts g.map(&:join).join ?\n
x=gets.match /\((.),(.),(.)\)/
a,b=x[1].hex,x[2].hex
1/0 if a<1||a>5||b<1||b>5
g[5-b][a-1]=x[3]}

Error on malformed input or out of bound position

Thanks to ConorO'Brien (8 bytes) and afuous (2 bytes) for helping saving bytes

• Conor O'Brien: loop do...end -> loop{...}; I think Array.new(5,[0]*5) works, too, or even [*[0]*5]*5.
• TuxCrafting: @ConorO'Brien Nope, Array.new(5,[0]*5) make an array of reference and [*[0]*5]*5 make a flat array
• Conor O'Brien: Oh, right. Omit the first *. Then that still creates an array of references.
• afuous: Array.new(5){[0]*5} can be replaced with (1..5).map{[0]*5} to save 2 bytes.

Answer 3

Batch, 199 bytes

@echo off
if %1 gtr 0 if %1 lss 6 if %2 gtr 0 if %2 lss 6 goto g
if
:g
for /l %%j in (5,1,-1)do call:l %* %%j
exit/b
:l
set s=000000
if %2==%2 call set s=%%s:~0,%1%%%3%%s:~%1%%
echo %s:~1,5%

Errors out if the position is out of range.

• Conor O'Brien: I think you can use symbols for <, like ^<. not sure tho.

Answer 4

PHP, (削除) 111 (削除ここまで) (削除) 100 (削除ここまで) 97 bytes

$s=str_repeat("00000\n",5);$s[($x=($a=$argv)[1])+29-6*$y=$a[2]]=$a[3];echo$x&&$y&&$x<6&$y<6?$s:E;

prints E if row/column out of range.
Run with php -r <code> <row> <column> <character>

Answer 5

Python, 66 bytes

lambda a,b,n,l='00000\n':6>b>0<a<6and(5-b)*l+l[:a-1]+n+l[a:]+~-b*l

• Titus: Won´t this fail for a=4,b=3?
• Rod: @Titus not anymore ;D
• george: Solution also works for Python3

Answer 6

Dyalog APL, (削除) 24 (削除ここまで) (削除) 20 (削除ここまで) 18 bytes

Saved 4 bytes thanks to Zgarb! Saved 2 bytes thanks to Adam!

a←5 5⍴0⋄a[⊂⎕]←⍞⋄⊖a

Prompts for input. See below for an explanation.

---

20 bytes

{a←5 5⍴0⋄a[⊂⍺]←⍵⋄⊖a}

Assign to a function and call it y x f 'c'. E.g.:

 f←{a←5 5⍴0⋄a[⊂⍺]←⍵⋄⊖a}
 5 2 f '*'
0 * 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
 6 6 f '*'
INDEX ERROR 
 ←{a←5 5⍴0 ⋄ a[⊂⍺]←⍵ ⋄ ⊖a}
 ∧ 
 0 0 f '*'
INDEX ERROR 
 ←{a←5 5⍴0 ⋄ a[⊂⍺]←⍵ ⋄ ⊖a}
 ∧ 

Explanation

{a←5 5⍴0⋄a[⊂⍺]←⍵⋄⊖a}

{...} is a function with left argument ⍺ and right argument ⍵. ⋄ separates statements, so there are three statements:

a←5 5⍴0⋄a[⊂⍺]←⍵⋄⊖a

The first statement a←5 5⍴0 sets a to a 5 by 5 grid of 0s.

The second statement sets the member at coordinates dictated by ⍺ to ⍵ (that is, the character).

Finally, we perform ⊖ on a and return that, yielding the firsts of a reversed.

• Zgarb: {a←5 5⍴0⋄a[⊂⌽⍺]←⍵⋄⊖a} saves a few bytes.
• Conor O'Brien: @Zgarb Oh, fantastic! I didn't know indexing worked like that.
• Adám: You can save two bytes by converting to a tradfn body: a←5 5⍴0⋄a[⊂⎕]←⍞⋄⊖a
• Conor O'Brien: @Adám how does that work? It doesn't seem to work on TryAPL.
• Adám: @ConorO'Brien Right. TryAPL prohibits prompting for input, but you can get the full version for free.

Answer 7

JavaScript (ES6), (削除) 73 (削除ここまで) 76 bytes

Throws a TypeError if the column or the row is out of range.

(c,r,C,a=[...`00000
`.repeat(5)])=>(a[29+c-r*6]=C,c<1|r<1|c>5|r>5||a).join``

Demo

let f =
(c,r,C,a=[...`00000
`.repeat(5)])=>(a[29+c-r*6]=C,c<1|r<1|c>5|r>5||a).join``
console.log(f(2,5,'*'));

• ETHproductions: Sweet, but does it throw an error if either c or r is less than 1?
• Arnauld: @ETHproductions It's only testing c == 0 || r == 0. But I guess you're right: I will update it to prevent negative values.

Answer 8

C#, 199 Bytes

Based on Pete Arden's answer

string g(int c, int r, char a){if(c<1|c>5|r<1|r>5)return "Index Error";var b="00000";var d=new[]{b,b,b,b,b};c--;d[r-1]=new string('0',c)+a+new string('0',4-c);return string.Join("\r\n",d.Reverse());}

Ungolfed:

public static string G(int c, int r, char a)
 {
 if (c < 1 || c > 5 || r < 1 || r > 5) return "Index Error"; // Check it's not out of range
 var b = "00000";
 var d = new [] { b, b, b, b, b }; // Generate display box, and fill with the default character
 c--; // Convert the X to a 0 based index
 d[r - 1] = new string('0',c) + a + new string('0',4-c); // Replace the array's entry in y coordinate with a new string containing the new character
 return string.Join("\r\n", d.Reverse()); // Reverse the array (so it's the right way up), then convert to a single string
 }

• DJMcMayhem: Welcome to the site! I'm not an expert in C#, but it looks like there's some whitespace you could remove.
• Eric: (Sorry, don't know submission etiquette) Shorter G(): public static string G(int c,int r,char a){return(0<c&&c<6&&0<r&&r<6)?string.Concat(Enumerable.Range(1,29).Select(i=>i%6>0?i/6==5-r&&i%6==c?a:'0':'\n')):"Index Error";}

Answer 9

05AB1E, (削除) 27 (削除ここまで) 22 bytes

Returns no grid when row/column> 5.

‚6‹Pi25L2<5*1+Q5äR»13‡

Try it online!

Previous version

‚6‹Pi26G3⁄452<*1+NQi3円}})5äR»

Answer 10

Jelly, 28 bytes

This feels way too long...

Ṫ0ẋ24¤;ṙÑs5UY
’ḅ5
Ṗḟ5R¤
-ÑÇ?

TryItOnline!

How?

Ṫ0ẋ24¤;ṙÑs5UY - Link 1, make grid: [row, column, character] e.g. [5,2,'*']
Ṫ - tail: character '*'
 ¤ - nilad followed by link(s) as a nilad 
 0 - zero
 ẋ - repeated
 24 - 24 times [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 ; - concatenate: "000000000000000000000000*"
 Ñ - call next link (2) as a monad 21
 ṙ - rotate left by "000*000000000000000000000"
 s5 - split into chunks of length 5 ["000*0","00000","00000","00000","00000"]
 U - upend (reveres each) ["0*000","00000","00000","00000","00000"]
 Y - join with line feeds 0*000
 - implicit print 00000
 00000
’ḅ5 - Link 2, position: [row, column] 00000
’ - decrement 00000
 ḅ5 - convert from base 5
Ṗḟ5R¤ - Link 3, input error checking: [row, column, character]
Ṗ - pop: [row, column]
 ḟ - filter out values in
 5R¤ - range(5): [1,2,3,4,5] - any values not in this remain giving a truthy result
-ÑÇ? - Main link: [row, column, character]
 ? - ternary if:
 Ç - last link (3) as a monad
- - -1 (if truthy - the error identification)
 Ñ - next link (1) as a monad (if falsey - the grid)

Answer 11

JavaScript (ES6), 89 bytes

f=(X,Y,Z,x=5,y=5)=>x+y>1?(x?X+x-6|Y-y?0:Z:`
`)+f(X,Y,Z,x?x-1:5,y-!x):X<1|X>5|Y<1|Y>5?e:""

Because I love recursion. Throws a ReferenceError on invalid coordinates.

Answer 12

Mathematica, 38 bytes

(x=Table[0,5,5];x[[-#2,#]]=#3;Grid@x)&

Answer 13

Brain-Flak 415 Bytes

Includes +3 for -c

([][()()()]){{}}{}({}<(({}<(({})<>)<>>)<>)<>([((((()()()){}){}){}){}]{}<([((((()()()){}){}){}){}]{})>)(()()()()()){({}[()]<(({})){{}(<({}[()])>)}{}({}<(({})){{}(<({}[()])>)}{}>)>)}{}({}{}){<>{{}}<>{}}<>>)<>(()()()()()){({}[()]<(((((((((()()()){}){}){}){})))))((()()()()()){})>)}{}{}<>({}<()((((((()()()){}){}()){}){}()[{}])({})({})({})({}){}{}[((((()()()){}){}){}){}()]){({}[()]<<>({}<>)>)}{}<>{}>)<>{({}<>)<>}<>

Try it Online!

Takes the character to insert first, then the row then column without spaces.

Most of this is just error handling. Brain-Flak doesn't have a good way to check if values are in a range. For errors, it either outputs nothing, or just the character that was supposed to be inserted. Solving the actual problem only takes 211 bytes:

<>(()()()()()){({}[()]<(((((((((()()()){}){}){}){})))))((()()()()()){})>)}{}{}<>({}<()((((((()()()){}){}()){}){}()[{}])({})({})({})({}){}{}[((((()()()){}){}){}){}()]){({}[()]<<>({}<>)>)}{}<>{}>)<>{({}<>)<>}<>

Answer 14

Excel VBA, 67 Bytes

Outputs to the range A1:E5 on the activesheet of the vba project, exits with

Run-time error '1004':

Application-defined or object-defined error

when an invalid input is provided.

Code:

Sub a(c,r,x)
c=IIf(r<1Or c>5,-1,c)
[A1:E5]=0
Cells(6-r,c)=x
End Sub

Usage:

a 4,5,"#"

Output (from example above):

 A B C D E
1 0 0 0 # 0
2 0 0 0 0 0
3 0 0 0 0 0
4 0 0 0 0 0
5 0 0 0 0 0

Answer 15

C#, 208 Bytes

Golfed:

string G(int c,int r,char a){if(c<1||c>5||r<1||r>5)return"Index Error";var b="00000";var d=new string[]{b,b,b,b,b};d[r-1]=d[r-1].Substring(0,c-1)+a+d[r-1].Substring(c);return string.Join("\r\n",d.Reverse());}

Ungolfed:

public string G(int c, int r, char a)
{
 if (c < 1 || c > 5 || r < 1 || r > 5) return "Index Error";
 var b = "00000";
 var d = new string[] { b, b, b, b, b };
 d[r - 1] = d[r - 1].Substring(0, c - 1) + a + d[r - 1].Substring(c);
 return string.Join("\r\n", d.Reverse());
}

Testing:

Console.Write(G(6, 6, '*')); //Index Error
Console.Write(G(1, 4, '#'));
00000
#0000
00000
00000
00000
Console.Write(G(5, 5, '@'));
0000@
00000
00000
00000
00000
Console.Write(G(1, 1, '}'));
00000
00000
00000
00000
}0000

• TheLethalCoder: If c and/or r are out of bounds it will throw an IndexOutOfRangeException so you might be able to remove the first if statement though I haven't checked the specs properly for that. You can compile to a Func<int, int, char, string> to save bytes, I believe you need to add using System.Linq; in because of the Reverse call though I can't remember off the top of my head
• TheLethalCoder: Change d[r - 1] = d[r - 1].Substring(0, c - 1) + a + d[r - 1].Substring(c); to d[--r] = d[r].Substring(0, c - 1) + a + d[r].Substring(c); to save 4 bytes

Answer 16

WinDbg, 95 bytes

j(0<(@$t0|@$t1))&(6>@$t0)&(6>@$t1)'f8<<16 L19 30;eb2000018+@$t0-@$t1*5 @$t2;da/c5 8<<16 L19';?0

Almost half of it just verifying the indexes are in range... Input is done by setting the psuedo-registers $t0, $t1, and $t2 (where $t2 holds the ascii value of the char to replace). For example, (2,5,*) like the example would be:

0:000> r$t0=2
0:000> r$t1=5
0:000> r$t2=2a

Prints 0 on error.

How it works:

j (0<(@$t0|@$t1)) & (6>@$t0) & (6>@$t1) * If $t0 and $t1 are both positive and less than 6
'
 f 8<<16 L19 30; * Put 19 (0n25) '0's (ascii 30) at 2000000 (8<<16)
 eb 2000018+@$t0-@$t1*5 @$t2; * Replace the specified cell with the new char
 da /c5 8<<16 L19 * Print 19 (0n25) chars in rows of length 5
';
 ?0 * ...Else print 0

Sample Output:

0:000> r$t0=2
0:000> r$t1=5
0:000> r$t2=2a
0:000> j(0<(@$t0|@$t1))&(6>@$t0)&(6>@$t1)'f8<<16 L19 30;eb2000018+@$t0-@$t1*5 @$t2;da/c5 8<<16 L19';?0
Filled 0x19 bytes
02000000 "0*000"
02000005 "00000"
0200000a "00000"
0200000f "00000"
02000014 "00000"
0:000> r$t0=-2
0:000> j(0<(@$t0|@$t1))&(6>@$t0)&(6>@$t1)'f8<<16 L19 30;eb2000018+@$t0-@$t1*5 @$t2;da/c5 8<<16 L19';?0
Evaluate expression: 0 = 00000000
0:000> r$t0=4
0:000> r$t1=2
0:000> r$t2=23
0:000> j(0<(@$t0|@$t1))&(6>@$t0)&(6>@$t1)'f8<<16 L19 30;eb2000018+@$t0-@$t1*5 @$t2;da/c5 8<<16 L19';?0
Filled 0x19 bytes
02000000 "00000"
02000005 "00000"
0200000a "00000"
0200000f "000#0"
02000014 "00000"
0:000> r$t1=f
0:000> j(0<(@$t0|@$t1))&(6>@$t0)&(6>@$t1)'f8<<16 L19 30;eb2000018+@$t0-@$t1*5 @$t2;da/c5 8<<16 L19';?0
Evaluate expression: 0 = 00000000

Answer 17

Haskell, 77 bytes

r=[1..5]
(x#y)c|x>0,x<6,y>0,y<6=unlines[[last$'0':[c|i==x,j==6-y]|i<-r]|j<-r]

Usage example:

*Main> putStr $ (2#5) '*'
0*000
00000
00000
00000
00000

If x and y are within range, outer and inner loop through [1..5] and take the char c if it hits the given x and y and a 0 otherwise. If x or y is not in range, a Non-exhaustive patterns exception is raised.

Answer 18

Octave 49 bytes

@(c,r,s)char(accumarray([6-r c],s+0,[5 5],[],48))

Answer 19

QBIC, (削除) 53 (削除ここまで) 50 bytes

EDIT: Now that I know that I don't have to show the starting grid, I've swapped out the user inputs _!_!_? for command line parameters ::;, saving 3 bytes.

[5|?@00000|]::;~(b>5)+(c>5)>1|_Xd\$LOCATE 6-c,b|?B

Original version: This halts between printing the 0-grid and taking the coordinates for the substitution, showing the 0-grid.

[5|?@00000|]_!_!_?~(b>5)+(c>5)>1|_Xd\$LOCATE 6-c,b|?B

Prints 5 strings of 5 0's, asks user for 2 numerical inputs and 1 string input, checks if the numbers are < 5 and uses QBasic's LOCATE function to substitute the right character.

Answer 20

Bash, 59 bytes

Golfed

printf '00000%0.s\n' {1..5}|sed "1ドル s/./3ドル/2ドル"|grep -z "3ドル"

1ドル, 2ドル - row, column, 3ドル - replacement char, error is reported via exit code

Test

>./box 2 2 "*"
00000
0*000
00000
00000
00000
>echo $?
0
>./box 6 2 '*' 
>echo $?
1

• roblogic: Nice work, but the origin (0,0) needs to be in the bottom left

Answer 21

Uiua, 13 bytes

⇌⍜⊡◌:↯5_5@0-1

Try it online!

Answer 22

Java, 99 bytes

(i,j,k)->{int[]b=new int[]{60,60,60,60,60};int[][]a=new int[][]{b,b,b,b,b};a[i-1][5-j]=k;return a;}

Answer 23

Vim, (削除) 60 (削除ここまで) (削除) 47 (削除ここまで) (削除) 42 (削除ここまで) 76 keystrokes

Input is in the format (on the first line):

25*

With the cursor starting at the beginning

"ax"bxx:if<C-r>a<1||<C-r>a>5||<C-r>b<1||<C-r>b>5
^
endif
6i0<ESC>Y5pG:norm <C-r>al<C-r>bkr<C-r>-
Hqqxjq5@qdd

If the input is invalid, then throws: E492: Not an editor command: ^

The cide that produces the output is only 42 bytes, but in order to create an error, my bytecount is drastically increased.

• user41805: BTW I don't know how to create the error in Vim

Answer 24

Java 8, (削除) 194 (削除ここまで) 192 bytes

interface M{static void main(String[]a){String r="";int i=0,j,z=new Byte(a[0]),y=new Byte(a[1]);for(;++i<6;r+="\n")for(j=0;++j<6;r+=6-i==y&j==z?a[2]:0);System.out.print(z>0&z<7&y>0&y<7?r:0);}}

Try it here with correct input.
Try it here with incorrect input.

This would be (削除) 116 (削除ここまで) 114 bytes instead as function instead of full program:

(a,b,c)->{String r="";for(int i=0,j;++i<6;r+="\n")for(j=0;++j<6;r+=b==6-i&a==j?c:0);return a>0&a<7&b>0&b<7?r:"0";}

Try it here.

Explanation:

interface M{ // Class
 static void main(String[]a){// Mandatory main-method
 String r=""; // Result-String, starting empty
 int i=0,j, // Index-integers
 z=new Byte(a[0]), // First input converted to integer
 y=new Byte(a[1]); // Second input converted to integer
 for(;++i<6; // Loop (1) from 1 to 6 (inclusive)
 r+="\n") // After every iteration: Append a new-line to the result
 for(j=0;++j<6; // Inner loop (2) from 1 to 6 (inclusive)
 r+=6-i==y // If the second input equals `6-1`,
 &j==z? // and the first input equals `j`:
 a[2] // Append the third input to the result-String
 : // Else:
 0 // Append a zero to the result-String
 ); // End of inner loop (2)
 // End of inner loop (1) (implicit / single-line body)
 System.out.print( // Print:
 z>0&z<7&y>0&y<7? // If the coordinates are valid (1-6):
 r // Print the result `r`
 : // Else:
 0); // Print 0 as error instead
 } // End of main-method
} // End of class

Answer 25

GFortran -fbounds-check, 97 bytes

character(1)K(5,5),a;K='0';read*,m,n;read*,a;K(m,n)=a
do j=5,1,-1;print*,(K(i,j),i=1,5);enddo;end

Try it online!

Any index outside the range [1,5] throws a Fortran runtime error.
_{(& much shorter than checking if(m<1.or.m>5.or.n<1.or.n>5)x=1/0 )}

Answer 26

Zsh, _{(削除) 68 (削除ここまで)} 55 bytes

((1ドル<6&&2ドル<6))&&jot -b00000 5|sed "2ドル s/./3ドル/1ドル"|tac||e

Try it online! (削除) _68b (削除ここまで)

If 1ドル or 2ドル are more than 5, Zsh throws command not found: e. If they are 0 or less, sed throws an error.

Answer 27

Perl 5, 83 + 2 (-ap) = 85 bytes

map{die if$_<1||$_>5}@F[0,1];$_=0 x25;substr$_,24-5*$F[1]+"@F",1,$F[2];s/.{5}\K/
/g

Try it online!