Cops and Robbers bowling (Cops)

Question

Cops' Thread

In this challenge, your goal is to write a function that accepts a integer N, and that function will return the first N primes. However, you must do this in the most characters possible.

• You may use any method you wish to produce the primes.
• You are not allowed to modify your code after posting.
• Only printable ASCII characters are allowed.
• A character cannot appear in your code more than 100 times.

However, after posting your answer, the robbers will have the opportunity to crack your code by posting a modified version of your code. Your code is considered cracked if:

1. The modified code has a maximum levenshtein-distance of 10 from yours, and has fewer characters.
2. The function, given the same valid input, will produce the same output in the same language of the same version
3. The robber posted the modified version within 168 hours (1 week) of your post.

If a robber failed to crack your code within 168 hours, your code is considered safe. The winner of this challenge is the cop with the longest safe code.

The title of your thread should contain the language, the number of characters, and the current status (Open, Cracked, Safe) of your code.

The accompanying robbers thread can be found here

Relevant tools

• Frequency counter
• Character counter
• Levenshtein distance

You can also use this snippet to calculate the Levenshtein distance:

var f=document.getElementById("f"),g=document.getElementById("s"); function h(){var a=f.value,e=g.value;if(128<a.length)a="<span style='color:red'>First program is too long!</span>";else if(128<e.length)a="<span style='color:red'>Second program is too long!</span>";else{if(0===a.length)a=e.length;else if(0===e.length)a=a.length;else{var d=[],b;for(b=0;b<=e.length;b++)d[b]=[b];var c;for(c=0;c<=a.length;c++)d[0][c]=c;for(b=1;b<=e.length;b++)for(c=1;c<=a.length;c++)d[b][c]=e.charAt(b-1)===a.charAt(c-1)?d[b-1][c-1]:Math.min(d[b-1][c-1]+1,Math.min(d[b][c-1]+1,d[b-1][c]+ 1));a=d[e.length][a.length]}a="Distance = <strong>"+a+"</strong>"}document.getElementById("d").innerHTML=a}f.onkeyup=h;g.onkeyup=h;

<h3 id=ft>First program</h3>
<textarea id=f rows=7 cols=80 style="width:100%"></textarea>
<h3 id=st>Second program</h3>
<textarea id=s rows=7 cols=80 style="width:100%"></textarea>
<p id=d></p>

Credits to Doorknob!

Answer 1

Python, 9304 (Safe)

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Similar to my previous answer, the long string is created through repeated application of zlib and base64 encoding. A short answer might be safer, but finding a longer one is more interesting.

To protect against string multiplication attacks and string concatenation attacks,
the following tricks are used:

• The extra characters not used in base64 encoding (added for more characters) are shuffled, and then interleaved in evenly spaced intervals.
• After the string is fully decoded and evaluated, there is still one last check to count the occurrences of each character in the string.

Hopefully it won't get golfed by some unexpected syntax shortening attack.

Answer 2

Java - 6193 (Cracked)

Here's the function; it takes n as input and returns an array of the first n primes:

int[]p(int n){int i,c=2,aaaaaaaabbbbbbbbbccccccccdddddddddeeeeeeeeffffffffgggggggghhhhhhhhiiiiiiiijjjjjjjjjkkkkkkkkkllllllllmmmmmmmmmnnnnnnnooooooooppppppppqqqqqqqqqrrrrrrrrsssssssssttttttttuuuuuuuuvvvvvvvvvwwwwwwwwwxxxxxxxxxyyyyyyyyzzzzzzzzzAAAAAAAAABBBBBBBBBCCCCCCCCCDDDDDDDDDEEEEEEEEEFFFFFFFFFGGGGGGGGGHHHHHHHHHIIIIIIIIIJJJJJJJJJKKKKKKKKKLLLLLLLLLMMMMMMMMMNNNNNNNNNOOOOOOOOOPPPPPPPPPQQQQQQQQQRRRRRRRRRSSSSSSSSSTTTTTTTTTUUUUUUUUUVVVVVVVVVWWWWWWWWWXXXXXXXXXYYYYYYYYYZZZZZZZZZ0000000011111111222222222333333333444444444555555555666666666777777777888888888999999999_________[];a:for(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_________=new int[0];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_________.length<n;c++){for(i=0;i<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_________.length;)if(c%aaaaaaaabbbbbbbbbccccccccdddddddddeeeeeeeeffffffffgggggggghhhhhhhhiiiiiiiijjjjjjjjjkkkkkkkkkllllllllmmmmmmmmmnnnnnnnooooooooppppppppqqqqqqqqqrrrrrrrrsssssssssttttttttuuuuuuuuvvvvvvvvvwwwwwwwwwxxxxxxxxxyyyyyyyyzzzzzzzzzAAAAAAAAABBBBBBBBBCCCCCCCCCDDDDDDDDDEEEEEEEEEFFFFFFFFFGGGGGGGGGHHHHHHHHHIIIIIIIIIJJJJJJJJJKKKKKKKKKLLLLLLLLLMMMMMMMMMNNNNNNNNNOOOOOOOOOPPPPPPPPPQQQQQQQQQRRRRRRRRRSSSSSSSSSTTTTTTTTTUUUUUUUUUVVVVVVVVVWWWWWWWWWXXXXXXXXXYYYYYYYYYZZZZZZZZZ0000000011111111222222222333333333444444444555555555666666666777777777888888888999999999_________[i++]<1)continue a;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_________=Arrays.copyOf(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_________,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_________.length+1);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_________[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_________.length-1]=c;}return 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_________;}

The basic idea was to golf it down so that it would be hard to shorten (without changing the structure). Then, make sure any variable is used at least 11 times. Then you can pad the variable name as much as you want. It can't be shortened, since that would mean at least 11 changes.

Making sure it was used 11 times (with no easy way to comment it out) was somewhat tricky, but I think I got it.

A more sane version is below. The only difference is whitespace, and I've replaced all instances of [stupidLongVariableName] with p to make it readable.

int[]p(int n){
    int i,c=2,p[];
    a:
    for(p=new int[0];p.length<n;c++){
        for(i=0;i<p.length;)
            if(c%p[i++]<1)
                continue a;
        p=Arrays.copyOf(p,p.length+1);
        p[p.length-1]=c;
    }
    return p;
}

Answer 3

MatLab 197 (Cracked)

Let's see, I've never done this, perhaps this is total crap^^

function l=codegolf_cop_primes(n)
if strcmp(fileread([mfilename,'.m']),fileread('codegolf_cop_primes.m'));
 if sum(find(fileread([mfilename,'.m'])==char(101)))==941;
   l=primes(n);
end;end;end

Answer 4

Python 3, 9500 (Cracked by user23013)

def P(n,x="'Good luck!'and([2]*(len(x)==9373)+[3]*(len(x)==9373)+[5]*(len(x)==9373)+[7]*(len(x)==9373)+[11]*(len(x)==9373)+[13]*(len(x)==9373)+[17]*(len(x)==9373)+[19]*(len(x)==9373)+[23]*(len(x)==9373)+[29]*(len(x)==9373)+[31]*(x[0]==x[-1]==x[9372]==\"'\")+[37]*(x[-2]==x[9371]=='!')+[41]*(x.count(chr(39))==100)+[43]*(x.count(chr(34))==98)+[47]*(x.count(chr(92))==1)+[53]*(x.count(' ')==98)+[59]*(x.count(';')==100)+[61]*(x.count(',')==99)+[67]*(x.count('x')==98)+[71]*(x.count('(')==98and x[-29:-1]=='This is the end of the line!'))[:n]+[k for k in range(72, n**2)if all(k%d > 0 for d in range(2, k))][:n-20]if n>=0else'                                                                     !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!####################################################################################################$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&(((((((((((((((((((((((((((((((((((((((((((((((((((()))))))))))))))))))))))))))))))))))))))))))))))))))))******************************************************************************++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-----------------------------------------------------------------------------------------------............................................................................................////////////////////////////////////////////////////////////////////////////////////////////////////000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111111111111111111111111111111111111111111111111111111111222222222222222222222222222222222222222222222222222222222222222222222222222222222222222223333333333333333333333333333333333333333333333333333333333333333333334444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444445555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666667777777777777777777777777777777777777777777777777777777777777777777777777777777778888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888889999999999999999999999999999999999999999999999999999999999999999999999999999::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<==================================================>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>????????????????????????????????????????????????????????????????????????????????????????????????????@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX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is the end of the line!'"):return eval(x)

Now let's hope I didn't forget about anything... _{(I did)}

---

Explanation

I think I had the right idea, but missed a major spot check. I always thought that len("\]") = 1 because the ] gets escaped. But apparently len("\]") = 2....

The idea was to read the program's own source code, in a sense. x is a string storing code to be evaluated in order to give the primes. However here's the catch — when evaluating, checks are performed on x itself, such as:

• Its length
• Counts of certain chars
• Whether the first/last chars are correct

If any of these checks fail, then one of the first 20 primes should fail to be printed. Furthermore, the length checks (of which there are 10!) are done by indexing, so if x is too short then the program will throw an exception.

I think the code would have been hard to crack if I'd taken all the backslashes and double quotes out as I'd initially planned, but I wanted to aim for a perfect 9500. Oh well.

Answer 5

Mathematica, 14 (Open)

So far, everyone answer that actually tried to bowl has been cracked. So I thought, I'd just try to get the first submission in that should remain safe, simply by golfing it instead of bowling it. If this works, I'll try gradually beating this. ;)

Prime@Range@#&

This is a pure function which can be used like

Prime@Range@#&[5]
(* {2, 3, 5, 7, 11} *)

Answer 6

R, 2496 (Cracked)

First time at one of these for me as well :). I think I've complied with the rules

f=function(n){primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu=rep(T,1e8);primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu[1]=F;last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu=2L;s=floor(sqrt(1e8));while(last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu<=s){primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu[seq.int(2L*last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu,1e8,last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu)]=F;a=which(primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu[(last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu+1):(s+1)]);if(any(a)){last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu=last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu+min(a)}else last.primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu=s+1;};which(primenumbervectorusedtopadouthelengthofthefunctionaaaaabbbbbbcccccdddddfffffgggggghhhhiiiilllllmmmmmjjjjjjjkkkkkkknnnoopppppqqqqqqqrrrrsssssvvvvvvwwwwwwwxxxxxxxyyyyyyyzzzzzzzuuu)[1:n]}

Answer 7

PHP, 3337 (Cracked)

This program creates a function n($n) which returns an array of the first $n primes. If you want to print the primes do something like print_r(n(10)). Warning: Very slow for large numbers of primes!

eval(gzinflate(base64_decode('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')));

Answer 8

Python, 5199 (Cracked)

Trying out this approach. See how it goes...

lambda x:eval(eval("'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'"+".decode('base64').decode('zlib')"*56))

Code used to generate the above:

s="([2]+[v for v in range(1,x*99)if 2**~-v%v==1])[:x]"
def makeFunc(s,g):
    return """lambda x:eval(eval("'"""+s.replace("\n","").replace(" ","")+"""'"+".decode('base64').decode('zlib')"*"""+`g`+"""))"""
def valid(s,g):
    s=makeFunc(s,g)
    return all(s.count(chr(j))<=100 for j in range(256))
g=0
while valid(s,g):
    s=s.encode('zlib').encode("base64")
    g+=1
final=makeFunc(s,g)
exec "f="+final
print f(50)
print final
print len(final)

Cracked... See comments.

Anyway for now, seems like once you used a combination of base64 and compression (to distribute characters uniformly to maximize possible length), having a safe answer is up to whether the code is golfed to the optimium.

Answer 9

C#, 161 (Cracked)

Decided to give this a try. Yes that really is a goto, and I think I died a little inside writing it.

static List<int>F(int N){var l=new List<int>();if(N>1){l.Add(2);for(int n=1,m=3,r=1;N-->0;n++){while(m<n){if(n%m==r)goto x;m+=2;r++;}l.Add(n*2+1);x:;}}return l;}

Answer 10

TI-BASIC, 4513

Input N:Nlength("ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!ABCDEFGHIJKLOPQRSTUVWXYZ3456789?,><.[]{}-=+^*()%!">N:{2>L1:For(A,3,E99:If min(1=gcd(A,seq(A,A,2,A^.5:A>L1(1+dim(L1:End:N/4410>dim(L1:L1

Answer 11

CJam, 816 (Cracked)

2096310474722535167101644870465221130589294718524480357298593539991449081456134974040327647811988614006547797131583006214774425505300308072534652704698066198168917157808088127072977533505828030424680462284796680517062482806071903877790511864982169694627161605805004020026776166437905874324921940992417561695490946773393335345359408853148348949580796568713745813831280652341152402924541125638927689856083360967358992399503448120976930749396205332801012617624500616793294935391926550972449345223742044846417092758797166517935273839376542415759222999108744843547749052422322505847239684550378130982502607844441524249912214473298703307285931801940096458075553488261398391072450942373513854346538654787042832255689633663897703600453311016458268536228117201022525438843626260325862965735311855887334994546704703657K)_#b:c~

This creates a function F which can be used like

9 F

where 9 is the input N

and this function leaves first N prime numbers on the stack.

Try it online here

Answer 12

CJam, 7531 (Cracked)

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It works only in the online interpreter. Tested in Firefox. It doesn't work in the Java interpreter.

Changed it to create a function T. Use 10 Tp after that line to test.

Answer 13

Java 8, 1785 (Cracked)

This uses a magic string to generate primes.

import java.lang.reflect.*;import java.util.*;class P extends ClassLoader{public static void main(String[]a)throws Exception{System.out.print(new P().primes(Integer.parseInt(a[0])));}List<Integer>primes(int n)throws Exception{byte[]b=Base64.getDecoder().decode("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");Class<?>p=defineClass("Primes",b,0,1052);Method m=p.getMethod("g",int.class);return(List<Integer>)m.invoke(null,n);}}

Answer 14

CJam, 6768 (Cracked)

K"gy;(q<hE23_@&]1;rIYoZA=(6j-'r@aJtcLDxe#19#s1m0VN~T|zD*YAS?/@LutnDPg'JyS-4#3y|CeTgN&GPs9D&p9!D${C9j`isBvuyeBE]P)n<ofN;m:rInU%g-EH!nQxZB[Q8d^:0*2Gv{yW9>sUD'0Y5K66tq6C`6&4mX}}790d;7Mxc`AS:m vo~q5utb4.mJ{UV']K#HXwYu[|py8DdIBD>0!^s7i?N'7krrp/iqZPCJ^?SNoOR7VxQ1,w:ID!VSf,R.TFV!tCAlwH9v&d3w8F-Xvt/i%j%%vA2{+kX]i 6_T3SW1DkB~,]p>$:xWX/eF19n0[21AI9f2(@W<?n2AX0iV{7SJYDz*!t> ;nb:n+OBz__@WpDH7lJ,;6uoJt`g{K}`df1TG%K~OUw:H$ol=9nFcQOD+E5*ekq!.p`P2[Z'u8=J&t5TieuSR'6?-g8>[l]*;Ko31l|M9p#)[3b5J`[SJ=Gr6Uns_1objzol2&k#KYoJ7!t-M:xbh-)ZV.w<S*ty;s}tahNtQ:Pza}rE@n3&02{a/SQdkJKe3+I6*^9)K[owPNs^6-4OG^lU`#) C3L_`<].wrk>%+yE??[CQG{|QSEw|NUN=9rf+wBxN p83XJeqKV&{#TE<qbFjT}4+;1PMolv?r+quS,Bm6U3#>=ZLDc1ZQ=i|Z61l_XGLG,v,aoX!67x{|g`Gu2+Nzu~VX]`h'Z>cC^Lr8%*uW23UhVE'/cPFr(!+@v**J&(N>t^}{e[Oep}1nR+1J582iM'B6 <euP !KZ@$+2:oBzc*%e+s!LE|G*MH`hIAf5k]`AN7US Tcj`N/VEYnfv|Ji9$}Jcs%+O<8TksXi5mW<O.sJ[!kL#I!2FOdZj?@7D9}%>3f7!>H&|XHvBjd)_.i'9BeACd!:G;= 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Works only in the online interpreter.

It will create a function T. Example: 10 Tp.

Answer 15

CJam, 847 (Cracked)

I swear this is the last one using this approach.

4779659069705537686629306155471157384185002665906714111039332233593305253079468024508943067783073619511162371004177761083906937019123280598903720691594788933998823566336886958487485882188081404453554140645458850256480477816754760296759608081868733889572904453777025857233956964359287627735920112545668451419633327348759828062858429551649268603103093273185548244528692381865244563710320514626922926579018891737532361295075806571486288031909749328444136657730394954950591089720665303368383306773979761795939998834047059891711321663733546692144057374799580281864662626927123661467550653064624501175880393774197348826665071960854773911967066677298613781653567324550746617015776799557587373107689983516628129486795118747367224275071679155545175621238368159967426890170894035742040653492311755971330981951171079833152098813713009957610693562K)_#b:cG/zs~

Same as all others, creates a function T which can be called like 10T]p to get the first N (here 10) primes.

Try it online here

Answer 16

Python 3, 9302 bytes (Cracked by user23013)

def P(n,x="'Time to try again!'and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and x[9273]and sorted(sorted(sorted(sorted(sorted(sorted(sorted(sorted(sorted(sorted(sorted([2]*(len(x)==9274 and x[9273] and n>=1)+[3]*(len(x)==9274 and x[9273] and n>=2)+[5]*(len(x)==9274 and x[9273] and n>=3)+[7]*(len(x)==9274 and x[9273] and n>=4)+[11]*(len(x)==9274 and x[9273] and n>=5)+[k for k in range(79,n*n)if all(k%d>0for d in range(2,k))][:max(0,n-21)]+[13]*(len(x)==9274 and x[9273] and n>=6)+[17]*(len(x)==9274 and x[9273] and n>=7)+[19]*(len(x)==9274 and x[9273] and n>=8)+[23]*(len(x)==9274 and x[9273] and n>=9)+[29]*(len(x)==9274 and x[9273] and n>=10)+[31]*(len(x)==9274 and x[9273] and n>=11)+[37]*(x[9273]==chr(39)and n>=12))+[41]*(x[9272]==chr(33)and n>=13))+[43]*(x[9271]==chr(115)and n>=14))+[47]*(x[9270]==chr(107)and n>=15))+[53]*(x[9269]==chr(108)and n>=16))+[59]*(x[9268]==chr(111)and n>=17))+[61]*(x[9267]==chr(102)and n>=18))+[67]*(x[9266]==chr(32)and n>=19))+[71]*(x[9265]==chr(44)and n>=20))+[73]*(x[9264]==chr(108)and n>=21))) or 'Uh oh' if n>0 else [] if n==0 else '''     !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!####################################################################################################$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&'&&&&&&&&&&&&&((((((((((((((((((((((((((((((((((((((((()))))))))))))))))))))))))))))))))))))))))******************************************************************************+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,---------------------------------------------------------------------------------------------------....................................................................................................////////////////////////////////////////////////////////////////////////////////////////////////////00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000111111111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222233333333333333333333333333333333333333333333333333333333333333344444444444444444444444444444444444444444444444444444444444444444444444444444444455555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555566666666666666666666666666666666666666666666666666666666666666666666666666666666666666666777777777777777777777777777777777777777777777777777888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888889999999999999999999999999999999999999999999999999::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<==================================>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>????????????????????????????????????????????????????????????????????????????????????????????????????@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY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or 'And thats all, folks!'"):return eval(x)

This time I've avoided backslashes and double quotes like the plague. No chance for a perfect 9500, but I'll be happy if this even manages to stay uncracked...

Answer 17

C# - 233 - Cracked

static IEnumerable<int>F(int N){var a=new List<int>();var w=2;while(a.Count<N){Func<int,int,bool>c=(o,k)=>(o%k)!=0;Action<List<int>,int>d=(t,n)=>t.Add(n);var p=true;var f=w/2;for(int i=2;i<=f;){p=c(w,i++);}if(p)d(a,w);w++;}return a;}

Answer 18

PHP v2 - Cracked!

Second attempt, should be more resilient to attack now that I understand the rules!

Here's the code revised from v1, note it is more than just changing print to echo, so I just didn't copy the cracked version from KSFT. (Actually, I used func instead of function in v1, so it's technically invalid.)

function f($N){for($X=2;$N>0;$N--,$X=gmp_nextprime($X))echo gmp_strval($X)."\n";}

Note the N > 0 condition is important, without it the function fails for N < 0.

In the rules it says N is an integer, so I allowed handling of negative integers, but in the Robbers thread it mentions "given the same valid input". N < 0 is an integer and technically valid input, but does it make sense to ask for -5 primes? As a cop, I'm going with my rules, so while it doesn't make sense, it is still valid input.

Use f($argv[1]); to call. Save as primes.php, run via command line:

$ php primes.php 10
2
3
5
7
11
13
17
19
23
29

Answer 19

Java, 485 (Cracked)

This is a full program. Output is in Java list format with a trailing newline. This uses portions of the concurrency API to bloat the program. This fails if n > Integer.MAX_VALUE.

import java.util.concurrent.*;class P{public static void main(String[]a)throws Exception{new java.io.FileOutputStream(java.io.FileDescriptor.out).write((new P().p(Integer.parseInt(a[0]))+"\n").getBytes());}CopyOnWriteArrayList<Integer>p(int n){int i=0;java.util.AbstractSequentialList<Integer>p=new java.util.LinkedList<>();while(p.size()<n)if(i(++i))p.add(i);return new CopyOnWriteArrayList<>(p);}boolean i(int n){if(n<2)return 0>1;for(int i=1;++i<n;)if(n%i<1)return 0>1;return 1>0;}}

Answer 20

PHP v3 (78 chars) - Open Cracked (?)

Third attempt!

Not going to deny it, this is just blatantly copying the cracked code from Tryth.

function f($N){for($X=2;$N-->0;$X=gmp_nextprime($X))echo gmp_strval($X)."\n";}

Note the >0 check is important, without it the function fails for N < 0.

In the rules it says N is an integer, so I allowed handling of negative integers, but in the Robbers thread it mentions "given the same valid input". N < 0 is an integer and technically valid input, but does it make sense to ask for -5 primes? As a cop, I'm going with the rules I was given, so while it doesn't make sense, it is still valid input.

Use f($argv[1]); to call. Save as primes.php, run via command line:

$ php primes.php 10
2
3
5
7
11
13
17
19
23
29

Answer 21

Java, 328 (Cracked)

Another magic string method. Much shorter (unfortunately). :(

import java.util.*;class P{public static void main(String[] args){System.out.print(new P().a(Integer.parseInt(args[0])));}List<Integer>a(int n){List<Integer>a=new ArrayList<>();int i=0;while(a.size()<n){if(b(++i)){a.add(i);}}return a;}boolean b(int n){String a="";for(int i=0;i++<n;)a+=1;return!a.matches("^1?$|^(11+?)\\1+$");}}

Answer 22

CJam, 844 (Cracked)

12247876366120440321987597021850303099642933156438096645849638833333796669145152157730940027890107281005910531197663816515537375105813004395899380585836297635211554406835251714644233377311180313806351554322591378031790757554316749763716910092225660788618471820881301518717801906372848112696524416568549935114340687733586827456214369410510395419921556825071212523337705803228595799373212401103152036673548421780881324448501082512655185005238821681990803145396009000973909800507781916769743162191496991228611317139593059968851018760665715388977769175766784944571868905607977583735512313028165561919771363465459087009309674834093296148584222690589604662407057035011740513343663528793002419282203653286073637418998298970726277476827911767544330705406278724865591029429120559455120218309440233354746066412254694019741678988828410289014532382K)_#b:c~

Creates a function T takes in the input N as input and leaves first N prime numbers on stack. Use it like 10T]p

Try it online here

Answer 23

Mathematica, 21 (Cracked)

Table[Prime@n,{n,#}]&

I am still new to Mathematica, but I think this cannot be golfed further with a max distance of 10.

This is an anonymous function which can be called like

Table[Prime@n,{n,#}]&[5]

to get

{2,3,5,7,11}

PS: I created a trial account of Mathematica Online just to prove Martin wrong :)

Answer 24

CJam, 6765 (Open)

"gy;(q<hE23_@&]1;rIYoZA=(6j-'r@aJtcLDxe#19#s1m0VN~T|zD*YAS?/@LutnDPg'JyS-4#3y|CeTgN&GPs9D&p9!D${C9j`isBvuyeBE]P)n<ofN;m:rInU%g-EH!nQxZB[Q8d^:0*2Gv{yW9>sUD'0Y5K66tq6C`6&4mX}}790d;7Mxc`AS:m vo~q5utb4.mJ{UV']K#HXwYu[|py8DdIBD>0!^s7i?N'7krrp/iqZPCJ^?SNoOR7VxQ1,w:ID!VSf,R.TFV!tCAlwH9v&d3w8F-Xvt/i%j%%vA2{+kX]i 6_T3SW1DkB~,]p>$:xWX/eF19n0[21AI9f2(@W<?n2AX0iV{7SJYDz*!t> ;nb:n+OBz__@WpDH7lJ,;6uoJt`g{K}`df1TG%K~OUw:H$ol=9nFcQOD+E5*ekq!.p`P2[Z'u8=J&t5TieuSR'6?-g8>[l]*;Ko31l|M9p#)[3b5J`[SJ=Gr6Uns_1objzol2&k#KYoJ7!t-M:xbh-)ZV.w<S*ty;s}tahNtQ:Pza}rE@n3&02{a/SQdkJKe3+I6*^9)K[owPNs^6-4OG^lU`#) C3L_`<].wrk>%+yE??[CQG{|QSEw|NUN=9rf+wBxN p83XJeqKV&{#TE<qbFjT}4+;1PMolv?r+quS,Bm6U3#>=ZLDc1ZQ=i|Z61l_XGLG,v,aoX!67x{|g`Gu2+Nzu~VX]`h'Z>cC^Lr8%*uW23UhVE'/cPFr(!+@v**J&(N>t^}{e[Oep}1nR+1J582iM'B6 <euP !KZ@$+2:oBzc*%e+s!LE|G*MH`hIAf5k]`AN7US Tcj`N/VEYnfv|Ji9$}Jcs%+O<8TksXi5mW<O.sJ[!kL#I!2FOdZj?@7D9}%>3f7!>H&|XHvBjd)_.i'9BeACd!:G;= 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I'm not sure how safe it is. But have fun cracking it.

It works only in the online interpreter.

It will create a function T. Example: 10 Tp.

Answer 25

CJam, 24 bytes (cracked)

{1{)__mp{@(_@\}*}g@?}:F;

This creates a function F which takes argument on stack and leaves that many first prime numbers.

Example usage:

10 F]p

Result:

[2 3 5 7 11 13 17 19 23 29]

Try it online here

Answer 26

Haskell, 924 bytes (Safe)

import Data.Numbers.Primes
f n=take n$id=<<id=<<fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)fmap(<$>)id[[primes]]

That's a total of 192 fmaps. If you had enough memory to actually compile this (you don't), ghc would factorize it to fmap.fmap.fmap. You crack my answer if you can prove that a (<$>) can be replaced with a (.).

I could make this longer, but I'm just going for the best Haskell answer really..

Edit:

Safe! I might come back to this actually. This is the same kind of problem as RSA; it is provably possible to factorize, it just takes silly amounts of computational power.