Print the ASCII table

Question

The task is to display n characters of the ASCII table.

You may write a function (or a program that takes the argument as a parameter, STDIN is allowed as well) that takes a parameter n, which will be the index of the last character to print.

The task is quite simple, so as an example here's a possible implementation in Python 2.7:

(lambda n:map(chr, range(n)))(256)

As I said it's a simple task. So this is code-golf and the shortest codes wins!

EDIT

As some of you pointed out this code doesn't print the result. It's just an example since I might struggle explaining the problem in english ;-).

EDIT2

Feel free to post the answer in any programming language, even if it's not the shortest code. Maybe there are some interesting implementations out there!

EDIT3

Fixed the example so it prints the result.

Answer 1

brainfuck - 169 146 142 bytes

-[+>+[+<]>+]>+>>,[>,]<[<]<[->>[->]<[<]<]>>>[[<[-<+<+<+>>>]+++++++++[<[-<+>]<<[-<+>>>+<<]<[->+<]>>>>-]]<,<<,>[->>>+<<<]>>>---------->]<-[->.+<]

Limitations:

• EOF must be 0
• Requires 8-bit wrapping cells
• Because of ^, mods input by 256

Not the shortest answer here, but hey, brainfuck! This would be a really, really good brainfuck challenge, except for the fact that it requires human readable input without guaranteeing the number of digits. I could have required input to have leading zeroes to make it 3 characters long, but what fun is that? :D One major problem with taking input this way is that brainfuck's only branching or looping structure checks if the current cell is zero or not. When the input can contain zeroes, it can cause your code to take branches it shouldn't be taking. To solve this problem, I store each digit of input plus 1, then subtract the excess at the last possible second. That way, I always know where my zeroes are.

I did say that this would have been a great brainfuck challenge without having to parse input. Why is that? Well, let's pretend that we don't take a numeric input. We'll say the challenge is "Given a byte of input, output all ASCII characters below that byte". Here's what my answer would be:

---

brainfuck - 8 bytes

,[->.+<]

---

It's quite a difference! The real program uses 135 instructions to collect the input (over 95% of the program!), just because it's a human typing it. Store the number as a byte and give that to me, and it only takes one.

(Fun fact: If you understood the hypothetical program, then congratulations! You understand brainfuck in its entirety. The whole language has only eight commands, and that program happens to use each one exactly once.)

Explanation

-[+>+[+<]>+]>+               abuse 8 bit wrapping to put 47 in cell 4

>>,[>,]                      starting in cell 6; get each character of input

<[<]<[->>[->]<[<]<]          subtract the value of cell 4 from each input character
                             '0' has an ascii value of 47 so subtracting 47 from each
                             digit gives you that digit's value plus 1

>>>[                         if the number is in more than one cell
                             (when the program first starts this means "if the input has
                             more than one digit")

[<[-<+<+<+>>>]               copy first input cell to 3 new cells

+++++++++[<[-<+>]<<          do some fancy addition magic to multiply that value by 10
[-<+>>>+<<]<[->+<]>>>>-]]

<,<<,>                       clean up a bit (abusing comma to set cells to 0)

[->>>+<<<]>>>                add the value to the next cell of input

----------                   because we multiplied (the digit plus 1) by 10; the answer
                             is 10 too high; so subtract 10

>]                           if the input is still in multiple cells; do the song and
                             dance again (multiply by 10; add to next cell; subtract 10)

<-                           we never got a chance to fix the final digit; so it's still 1
                             too high

               ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
               ;;         we have now finished processing input         ;;
               ;;     the tape is empty except for the current cell     ;;
               ;;  the current cell contains the number that was input  ;;
               ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

[                            while the cell containing input != 0

-                            subtract 1 from it

>.+                          go a cell to the right; output that cell; then add 1

<]                           repeat

Answer 2

CJam, 4 bytes

ric,

Full program that reads from STDIN (input field in the online interpreter).

This simply executes range(chr(int(input()))), taking advantage of the fact that , gives a return an array of characters if its argument is a character.

I call dibs on c, (2 bytes), just in case that assuming the input is already on the stack turns out to be allowed.

Answer 3

Pyth, 4 bytes

VQCN

Basically a translation of the Python 3 program:

for N in range(eval(input())):print(chr(N))

Answer 4

Befunge 93 - 23 21

&> :#v_,>:#,_@
 ^-1:<

Befunge 93 - 15 13 (by Ingo Bürk)

This one prints the list in reverse, but OP only said we need to print the first n characters, not that it has to be in order.

&>::>v
@^-1,_

Might not be golfable any further without moving on to Befunge98 (for the ";" operator, see @Kasran's answer)

Try it here:

function BefungeBoard(source, constraints) {
    constraints = constraints || {
        width: 80,
        height: 25
    };

    this.constraints = constraints;
    this.grid = source.split(/\r\n|[\n\v\f\r\x85\u2028\u2029]/).map(function (line) {
        return (line + String.repeat(' ', constraints.width - line.length)).split('');
    });
    for (var i = this.grid.length; i < constraints.height; i++) {
        this.grid[i] = String.repeat(' ', constraints.width).split('');
    }

    this.pointer = {
        x: 0,
        y: 0
    };

    this.direction = Direction.RIGHT;
}

BefungeBoard.prototype.nextPosition = function () {
    var vector = this.direction.toVector(),
        nextPosition = {
            x: this.pointer.x + vector[0],
            y: this.pointer.y + vector[1]
        };

    nextPosition.x = nextPosition.x < 0 ? this.constraints.width - 1 : nextPosition.x;
    nextPosition.y = nextPosition.y < 0 ? this.constraints.height - 1 : nextPosition.y;

    nextPosition.x = nextPosition.x >= this.constraints.width ? 0 : nextPosition.x;
    nextPosition.y = nextPosition.y >= this.constraints.height ? 0 : nextPosition.y;

    return nextPosition;
};

BefungeBoard.prototype.advance = function () {
    this.pointer = this.nextPosition();
    if (this.onAdvance) {
        this.onAdvance.call(null, this.pointer);
    }
};

BefungeBoard.prototype.currentToken = function () {
    return this.grid[this.pointer.y][this.pointer.x];
};

BefungeBoard.prototype.nextToken = function () {
    var nextPosition = this.nextPosition();
    return this.grid[nextPosition.y][nextPosition.x];
};

var Direction = (function () {
    var vectors = [
        [1, 0],
        [-1, 0],
        [0, -1],
        [0, 1]
    ];

    function Direction(value) {
        this.value = value;
    }

    Direction.prototype.toVector = function () {
        return vectors[this.value];
    };

    return {
        UP: new Direction(2),
        DOWN: new Direction(3),
        RIGHT: new Direction(0),
        LEFT: new Direction(1)
    };
})();

function BefungeStack() {
    this.stack = [];
}

BefungeStack.prototype.pushAscii = function (item) {
    this.pushNumber(item.charCodeAt());
};

BefungeStack.prototype.pushNumber = function (item) {
    if (isNaN(+item)) {
        throw new Error(typeof item + " | " + item + " is not a number");
    }

    this.stack.push(+item);
};

BefungeStack.prototype.popAscii = function () {
    return String.fromCharCode(this.popNumber());
};

BefungeStack.prototype.popNumber = function () {
    return this.stack.length === 0 ? 0 : this.stack.pop();
};

function Befunge(source, constraints) {
    this.board = new BefungeBoard(source, constraints);
    this.stack = new BefungeStack();
    this.stringMode = false;
    this.terminated = false;

    this.digits = "0123456789".split('');
}

Befunge.prototype.run = function () {
    for (var i = 1; i <= (this.stepsPerTick || 10); i++) {
        this.step();
        if (this.terminated) {
            return;
        }
    }

    requestAnimationFrame(this.run.bind(this));
};

Befunge.prototype.step = function () {
    this.processCurrentToken();
    this.board.advance();
};

Befunge.prototype.processCurrentToken = function () {
    var token = this.board.currentToken();
    if (this.stringMode && token !== '"') {
        return this.stack.pushAscii(token);
    }

    if (this.digits.indexOf(token) !== -1) {
        return this.stack.pushNumber(token);
    }

    switch (token) {
        case ' ':
            while ((token = this.board.nextToken()) == ' ') {
                this.board.advance();
            }
            return;
        case '+':
            return this.stack.pushNumber(this.stack.popNumber() + this.stack.popNumber());
        case '-':
            return this.stack.pushNumber(-this.stack.popNumber() + this.stack.popNumber());
        case '*':
            return this.stack.pushNumber(this.stack.popNumber() * this.stack.popNumber());
        case '/':
            var denominator = this.stack.popNumber(),
                numerator = this.stack.popNumber(),
                result;
            if (denominator === 0) {
                result = +prompt("Illegal division by zero. Please enter the result to use:");
            } else {
                result = Math.floor(numerator / denominator);
            }

            return this.stack.pushNumber(result);
        case '%':
            var modulus = this.stack.popNumber(),
                numerator = this.stack.popNumber(),
                result;
            if (modulus === 0) {
                result = +prompt("Illegal division by zero. Please enter the result to use:");
            } else {
                result = Math.floor(numerator / modulus);
            }

            return this.stack.pushNumber(result);
        case '!':
            return this.stack.pushNumber(this.stack.popNumber() === 0 ? 1 : 0);
        case '`':
            return this.stack.pushNumber(this.stack.popNumber() < this.stack.popNumber() ? 1 : 0);
        case '>':
            this.board.direction = Direction.RIGHT;
            return;
        case '<':
            this.board.direction = Direction.LEFT;
            return;
        case '^':
            this.board.direction = Direction.UP;
            return;
        case 'v':
            this.board.direction = Direction.DOWN;
            return;
        case '?':
            this.board.direction = [Direction.RIGHT, Direction.UP, Direction.LEFT, Direction.DOWN][Math.floor(4 * Math.random())];
            return;
        case '_':
            this.board.direction = this.stack.popNumber() === 0 ? Direction.RIGHT : Direction.LEFT;
            return;
        case '|':
            this.board.direction = this.stack.popNumber() === 0 ? Direction.DOWN : Direction.UP;
            return;
        case '"':
            this.stringMode = !this.stringMode;
            return;
        case ':':
            var top = this.stack.popNumber();
            this.stack.pushNumber(top);
            return this.stack.pushNumber(top);
        case '\\':
            var first = this.stack.popNumber(),
                second = this.stack.popNumber();
            this.stack.pushNumber(first);
            return this.stack.pushNumber(second);
        case '$':
            return this.stack.popNumber();
        case '#':
            return this.board.advance();
        case 'p':
            return this.board.grid[this.stack.popNumber()][this.stack.popNumber()] = this.stack.popAscii();
        case 'g':
            return this.stack.pushAscii(this.board.grid[this.stack.popNumber()][this.stack.popNumber()]);
        case '&':
            return this.stack.pushNumber(+prompt("Please enter a number:"));
        case '~':
            return this.stack.pushAscii(prompt("Please enter a character:")[0]);
        case '.':
            return this.print(this.stack.popNumber());
        case ',':
            return this.print(this.stack.popAscii());
        case '@':
            this.terminated = true;
            return;
    }
};

Befunge.prototype.withStdout = function (printer) {
    this.print = printer;
    return this;
};

Befunge.prototype.withOnAdvance = function (onAdvance) {
    this.board.onAdvance = onAdvance;
    return this;
};

String.repeat = function (str, count) {
    var repeated = "";
    for (var i = 1; i <= count; i++) {
        repeated += str;
    }

    return repeated;
};

window['requestAnimationFrame'] = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function (callback) {
    window.setTimeout(callback, 1000 / 60);
};

(function () {
    var currentInstance = null;

    function resetInstance() {
        currentInstance = null;
    }

    function getOrCreateInstance() {
        if (currentInstance !== null && currentInstance.terminated) {
            resetInstance();
        }

        if (currentInstance === null) {
            var boardSize = Editor.getBoardSize();
            currentInstance = new Befunge(Editor.getSource(), {
                width: boardSize.width,
                height: boardSize.height
            });
            currentInstance.stepsPerTick = Editor.getStepsPerTick();

            currentInstance.withStdout(Editor.append);
            currentInstance.withOnAdvance(function (position) {
                Editor.highlight(currentInstance.board.grid, position.x, position.y);
            });
        }

        return currentInstance;
    }

    var Editor = (function (onExecute, onStep, onReset) {
        var source = document.getElementById('source'),
            sourceDisplay = document.getElementById('source-display'),
            sourceDisplayWrapper = document.getElementById('source-display-wrapper'),
            stdout = document.getElementById('stdout');
        var execute = document.getElementById('execute'),
            step = document.getElementById('step'),
            reset = document.getElementById('reset');
        var boardWidth = document.getElementById('board-width'),
            boardHeight = document.getElementById('board-height'),
            stepsPerTick = document.getElementById('steps-per-tick');

        function showEditor() {
            source.style.display = "block";
            sourceDisplayWrapper.style.display = "none";
            source.focus();
        }

        function hideEditor() {
            source.style.display = "none";
            sourceDisplayWrapper.style.display = "block";

            var computedHeight = getComputedStyle(source).height;
            sourceDisplayWrapper.style.minHeight = computedHeight;
            sourceDisplayWrapper.style.maxHeight = computedHeight;

            sourceDisplay.textContent = source.value;
        }

        function resetOutput() {
            stdout.value = null;
        }

        function escapeEntities(input) {
            return input.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
        }

        sourceDisplayWrapper.onclick = function () {
            resetOutput();
            showEditor();
            onReset && onReset.call(null);
        };
        execute.onclick = function () {
            resetOutput();
            hideEditor();
            onExecute && onExecute.call(null);
        };
        step.onclick = function () {
            hideEditor();
            onStep && onStep.call(null);
        };
        reset.onclick = function () {
            resetOutput();
            showEditor();
            onReset && onReset.call(null);
        };

        return {
            getSource: function () {
                return source.value;
            },

            append: function (content) {
                stdout.value = stdout.value + content;
            },

            highlight: function (grid, x, y) {
                var highlighted = [];
                for (var row = 0; row < grid.length; row++) {
                    highlighted[row] = [];
                    for (var column = 0; column < grid[row].length; column++) {
                        highlighted[row][column] = escapeEntities(grid[row][column]);
                    }
                }

                highlighted[y][x] = '<span class="activeToken">' + highlighted[y][x] + '</span>';
                sourceDisplay.innerHTML = highlighted.map(function (lineTokens) {
                    return lineTokens.join('');
                }).join('\n');
            },

            getBoardSize: function () {
                return {
                    width: +boardWidth.innerHTML,
                    height: +boardHeight.innerHTML
                };
            },

            getStepsPerTick: function () {
                return +stepsPerTick.innerHTML;
            }
        };
    })(function () {
        getOrCreateInstance().run();
    }, function () {
        getOrCreateInstance().step();
    }, resetInstance);
})();

.container {
    width: 100%;
}
.so-box {
    font-family:'Helvetica Neue', Arial, sans-serif;
    font-weight: bold;
    color: #fff;
    text-align: center;
    padding: .3em .7em;
    font-size: 1em;
    line-height: 1.1;
    border: 1px solid #c47b07;
    -webkit-box-shadow: 0 2px 2px rgba(0, 0, 0, 0.3), 0 2px 0 rgba(255, 255, 255, 0.15) inset;
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
    background: #f88912;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.3), 0 2px 0 rgba(255, 255, 255, 0.15) inset;
}
.control {
    display: inline-block;
    border-radius: 6px;
    float: left;
    margin-right: 25px;
    cursor: pointer;
}
.option {
    padding: 10px 20px;
    margin-right: 25px;
    float: left;
}
input, textarea {
    box-sizing: border-box;
}
textarea {
    display: block;
    white-space: pre;
    overflow: auto;
    height: 75px;
    width: 100%;
    max-width: 100%;
    min-height: 25px;
}
span[contenteditable] {
    padding: 2px 6px;
    background: #cc7801;
    color: #fff;
}
#controls-container, #options-container {
    height: auto;
    padding: 6px 0;
}
#stdout {
    height: 50px;
}
#reset {
    float: right;
}
#source-display-wrapper {
    display: none;
    width: 100%;
    height: 100%;
    overflow: auto;
    border: 1px solid black;
    box-sizing: border-box;
}
#source-display {
    font-family: monospace;
    white-space: pre;
    padding: 2px;
}
.activeToken {
    background: #f88912;
}
.clearfix:after {
    content:".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
.clearfix {
    display: inline-block;
}
* html .clearfix {
    height: 1%;
}
.clearfix {
    display: block;
}

<div class="container">
    <textarea id="source" placeholder="Enter your Befunge-93 program here" wrap="off">&> :#v_,>:#,_@
 ^-1:<</textarea>
    <div id="source-display-wrapper">
        <div id="source-display"></div>
    </div>
</div>
<div id="controls-container" class="container clearfix">
    <input type="button" id="execute" class="control so-box" value="► Execute" />
    <input type="button" id="step" class="control so-box" value="Step" />
    <input type="button" id="reset" class="control so-box" value="Reset" />
</div>
<div id="stdout-container" class="container">
    <textarea id="stdout" placeholder="Output" wrap="off" readonly></textarea>
</div>
<div id="options-container" class="container">
    <div class="option so-box">Steps per Tick: <span id="steps-per-tick" contenteditable>500</span>

    </div>
    <div class="option so-box">Board Size: <span id="board-width" contenteditable>80</span> x <span id="board-height" contenteditable>25</span>

    </div>
</div>

Answer 5

Java, 151 128 77 62 56 bytes

First try at code-golfing.

void f(int n){for(char i=0;++i<=n;System.out.print(i));}

Usage:

import java.util.Scanner;
class A {

    public static void main(String[] a) {
        int num = new Scanner(System.in).nextInt();
        new A().f(num);
    }

    void f(int n) {
        for (char i = 0; ++i <= n; System.out.print(i));
    }
}

Thanks to @Shujal, @flawr, @Ingo Bürk and @Loovjo for the serious byte reduction.

Answer 6

APL,5

⎕UCS⍳

Example usage:

⎕UCS⍳256

Answer 7

JavaScript, ES6 - 52 58 56 53 44 42 bytes

n=>String.fromCharCode(...Array(n).keys())

Paste this into the Firefox console. Run as f(NUM).

Had to make it longer because the first didn't properly accept input.

Down 3, thanks edc65! Down to 44 thanks to Swivel!

Answer 8

Haskell, 17 23 bytes

flip take['\0'..]

Not sure if it is possible to do any better without imports.

Edit

My first solution didn't actually print the result, so allow 6 more chars for that:

print.flip take['\0'..]

Also, not shorter (25 chars with printing, 19 without), but an interesting alternate approach (it requires 'Data.List', though):

print.((inits['\0'..])!!)

Answer 9

Perl, 17 bytes

say chr for 0..$_

Answer 10

awk - 27

{while(i<$0)printf"%c",i++}

To give the parameter on stdin run it like:

awk '{while(i<$0)printf"%c",i++}' <<<96

---

Just for fun: The "think positive version" starting with a definitive yes:

yes|head -96|awk '{printf"%c",NR-1}'

NR-1 is needed to print (char)0 for NR==1.    :-(

And why don't we have a no command? That's kinda mean!

Answer 11

Bash+BSD common utilities, 9 bytes

jot -c $1

GNU dc, 20 bytes

?sc_1[1+dPdlc>m]dsmx

Answer 12

C, 31 30 28 27

k;f(n){putch(k++)<n&&f(n);}

Since putch is nonstandard, here's the fully compliant version:

k;f(n){putchar(k++)<n&&f(n);}

Must be called from main:

main(){f(255);}

EDIT: Improved by taking advantage of putchar return value
EDIT 2: Reduced by another character through recursion

Answer 13

CJam, 3

,:c

I assumed the argument to be the top stack element.

Example usage:

256,:c

ri,:c

Answer 14

Ruby, 30 characters

puts (0..$*[0].to_i).map &:chr

Answer 15

J - 5 bytes

{.&a.

{. is Head, a. is Alphabet ( a list of all chars) and & Bonds them, generating a monadic verb called like:

{.&a. 100 NB. first 100 characters

Note: It seems this does not work interactively: Jconsole and jQt seems to set up a translation, outputting box characters instead of some control characters. In a script or from the commandline, it does work though:

  ijconsole <<< '127 {. a.' | hd

Answer 16

gs2, 2 bytes

V.

This should be competing, I think! It would’ve worked even in the early days of gs2. Try it here.

Answer 17

Brainfuck, 44 bytes

,
[
  <[>++++++++++<-]
  -[>-<-----]
  >+++>,
]
<[>.+<-]

Expects a decimal string without a trailing newline.

Try it online.

Reading integers in the range [0, max_cell_size] in brainfuck is not difficult. I encourage you to invent a clean method on your own. I consider this a beginner level exercise. (The reverse operation of printing a cell's numeric value is more involved, and could be considered an intermediate level task.)

Here's a 58-byte version that can handle 256 on 8-bit implementations:

,
[
  <[<+> >++++++++++<-]
  -[>-<-----]
  >+++>,
]
<[>]
-<<[>.]
>[>+.<-]

Answer 18

√ å ı ¥ ® Ï Ø ¿ , 3 bytes

Note: Language post-dates challenge

IrW

Explanation

I   › Take input from command line, evaluate and push to stack
 r  › Push the range from 0 to top value + 1
  W › Output the whole stack as Unicode characters

Alternate Solution

As pointed out by @FlipTack in his Java answer, it is not clear if the OP wants us to print up to and including the input or excluding the input.

If the second is true, the solution below is the correct answer.

IrPW

Explanation

I    › Take input from command line, evaluate and push to stack
 r   › Push the range from 0 to top value + 1
  P  › Pop the top value from the stack
   W › Output the whole stack as Unicode characters

Answer 19

Golfscript - 5

Thanks to @Dennis

~,''+

Answer 20

Lua - 43 41 Bytes

for i=1,arg[1]do print(string.char(i))end

Answer 21

Befunge 98, 22

&:00pv>0gk,@
0::-1<^j`

Kind of sad that this is so long.

&:00p        ; gets numerical input, stores a copy at cell (0,0)               ;
     v       ; IP goes down                                                    ;

     <       ; IP goes left, so I execute 1-::0`j^                             ;
 ::-1        ; (1-::) subtract one from our number and duplicate it twice      ;
0       `    ; (0`) compare the number with 0, push 1 if greater else 0        ;
     <^j     ; if the result was 0, go up, otherwise continue going left       ;

      >0gk,  ; get the value at cell (0,0), print that many numbers from stack ;
           @ ; terminate program                                               ;

Answer 22

Python 3.4 - 36 bytes / 43 bytes

print(*map(chr,range(int(input()))))
print(*map(chr,range(int(input()))),sep='')

255 input()

How this works is:

1. Get upper limit of range
2. Generate a range of the table.
3. Map the range to chr function ( takes int, returns ascii ).
4. Consume the map via splat argument expansion ( number -> character -> print! )

The second one just removes the space separating each character in exchange for 7 bytes.

Answer 23

Pascal 87

program _;var c:char;n:byte;begin n:=0;readln(n);for c:=chr(0)to chr(n)do write(c);end.

Pascal 73

program _;var c,n:byte;begin readln(n);for c:=0to n do write(chr(c));end.

Builds and runs fine from http://www.onlinecompiler.net/pascal

Answer 24

x86 ASM (Linux) (many many bytes unless you compile it)

Written as a function, assumes parameter is passed in AX (I forget the number for the read syscall) Also doesn't preserve [SP] or BX.

test ax,ax
jz @Done
mov [sp],ax
@Loop:
mov ax,4
mov bx,1
mov cx,sp
mov dx,1
int 0x80
sub [sp],1  ; Can I do this?  Or do I need to load/sub/store separately?
jnz @Loop
@Done:
ret

Answer 25

Perl - 29

sub f{print map{chr}0..shift}

Answer 26

Ruby, 23

f=->n{puts *?\0..n.chr}

Explanation

• Input is taken as the argument to a lambda. It expects an Integer.
• The "destructuring operator" (*) invokes #to_ary on the Range to print every character on its own line.

Answer 27

Julia: 20 characters (REPL)

This is close to the question's example: just generates the characters and let the REPL to do whatever it wants with them.

f(n)=map(char,[0:n])

Julia: 33 characters

Prints each character in a separate line.

print(map(char,[0:int(ARGS[1])]))

Answer 28

M (MUMPS) - 21

R n F i=1:1:n W $C(i)

In expanded form: READ n FOR i=1:1:n WRITE $CHAR(i)

Answer 29

T-SQL: 68 63

As a print loop

DECLARE @i INT=64,@ INT=0A:PRINT CHAR(@)SET @+=1IF @<=@i GOTO A

T-SQL: 95 86

As a query

DECLARE @ INT=64SELECT TOP(@+1)CHAR(ROW_NUMBER()OVER(ORDER BY 0/0)-1)FROM sys.messages

Edit: Made changes and fixes pointed out by Muqo. Thanks. Fixes and golfing suggested by @t-clausen.dk

Answer 30

BrainFuck - 140 112 Bytes

,>,>,>-[>+<-----]>---[<+>-]<[<<<->->->-]<[>+<-]<[>>++++++++++<<-]<[>>>>++++++++++[<++++++++++>-]<<<<-]>>>[>.+<-]

Try It Here!

Saved 28 bytes by changing [<<<->>>->+<]>[<<<->>>->+<]>[<<<->>>-] to [<<<->->->-].

What it does

,>,>,>                                                              Takes three inputs
                                                                    in three separate cells

-[>+<-----]>---[<+>-]<[<<<->->->-]<                                 Takes 48 off of each to
                                                                    convert them to decimal

[>+<-]<[>>++++++++++<<-]<[>>>>++++++++++[<++++++++++>-]<<<<-]>>>    Combines them into a
                                                                    three digit number by
                                                                    multiplying the first
                                                                    by 100, the second by
                                                                    10 and then adding all
                                                                    three

[>.+<-]                                                             Repeatedly prints the
                                                                    value of the adjacent
                                                                    cell and then adds one
                                                                    to it until it reaches
                                                                    the input value.