questions for programmers interview
category: code [glöplog]
Code:
for($i=1;$i<=100;$i++) echo ((!($i%3))?"Fizz":((!($i%5))?"Buzz":$i))."\n";
rasmus: did you actually try that :P
yes? not sure if the output was supposed to look like this. But it's just a conversion of what tomaes did.
Code:
1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
Fizz
16
17
Fizz
19
Buzz
Fizz
22
23
Fizz
Buzz
26
Fizz
28
29
Fizz
31
32
Fizz
34
Buzz
Fizz
37
38
Fizz
Buzz
41
Fizz
43
44
Fizz
46
47
Fizz
49
Buzz
Fizz
52
53
Fizz
Buzz
56
Fizz
58
59
Fizz
61
62
Fizz
64
Buzz
Fizz
67
68
Fizz
Buzz
71
Fizz
73
74
Fizz
76
77
Fizz
79
Buzz
Fizz
82
83
Fizz
Buzz
86
Fizz
88
89
Fizz
91
92
Fizz
94
Buzz
Fizz
97
98
Fizz
Buzz
You're missing all the FizzBuzz'es in that one, Rasmus ;)
Mhmm.
How about this. :)
Code:
#include <stdio.h>
int main( int argc, char ** argv ){
int k = 0142, i = (~~!'\0'<<0xA)-(!'\0'<<5)+(!'\0'<<3);
char s[] = {k, k+4, k+7, k+19, k+24, !!(k-~~k)}, f[*s-0x5d], b[(!i|!i-~!-03)*5];
f[!s] = s[!!k]; f[1?1&!!i+!i:!i] = s[1<<1];
f[(!!k^!k)<<!!k] = *(s+(0x400>>010));
f[3] = s[(-1^!-1)&(!!~1<<2)]; f[1^!-1+01^~-1+1<<2-!'?'] = *(s+!!~0+2*2);
b[!s] = s[!f]; b[0?0:!!'Z'] = s[-1&0x3];
b[~0*-1<<1] = *(f+!0*2); b[3] = f[1^!-1+2];
b[~!+04?04:04] = s[~0&0x10-~~0xb];
while(i--) (!(i%15))?printf("%s%s\n",f,b):(!(i%5))?puts(b):(!(i%3))?puts(f):"";
}
That's what I'd call badly obfuscated. And it's not even coming from f2c since there are no gotos :)
There's insane and then there's evil. ;)
But you're right. Every version that uses mod gives too much away. Feel free to do a "good" obfuscated one. I collect them and put them up on github later today. :)
But you're right. Every version that uses mod gives too much away. Feel free to do a "good" obfuscated one. I collect them and put them up on github later today. :)
I think tomaes won the thread.
This is going mental!
C++ compilers are fun (look at the disassembly output :)
Code:
#include <stdio.h>
template <int A, int B> inline void recurse()
{
if (B>A)
{
recurse<A,(A+B)/2>();
recurse<(A+B)/2+1,B>();
}
else
{
if (!(A%15)) { printf("fizzbuzz\n"); }
else if (!(A%3)) { printf("fizz\n"); }
else if (!(A%5)) { printf("buzz\n"); }
else printf("%d\n",A);
}
}
int main()
{
recurse<1,100>();
return 0;
}
Code:
for($i=1;$i<=100;$i++) echo ((!($i%15))?"FizzBuzz":((!($i%5))?"Buzz":((!($i%3))?"Fizz":$i)))."\r\n";i'm sorta considering making one based on the principle of that both "Fizz" and "Buzz" are dword-sized, or just jumping around in a "FizzBuzz" string, but i dont think they'll obfuscate that well.
I was going to do one that runs on a shader that displays fizzbuzz as a texture, based on the color (index, 0 to 100) of the underlying pixels, but on second thought no.
templates, bah humbug:
Code:
#ifndef TENS
#define PASTE_HLP(a, b) a##b
#define PASTE(a, b) PASTE_HLP(a, b)
#define STRFY_HLP(a) #a
#define STRFY(a) STRFY_HLP(a)
#include <stdio.h>
int main(void) {
puts(
#define TENS
#include "fizzbuzz.c"
#define TENS 1
#include "fizzbuzz.c"
#define TENS 2
#include "fizzbuzz.c"
#define TENS 3
#include "fizzbuzz.c"
#define TENS 4
#include "fizzbuzz.c"
#define TENS 5
#include "fizzbuzz.c"
#define TENS 6
#include "fizzbuzz.c"
#define TENS 7
#include "fizzbuzz.c"
#define TENS 8
#include "fizzbuzz.c"
#define TENS 9
#include "fizzbuzz.c"
#define TENS 10
#include "fizzbuzz.c"
);
return 0;
}
#elif !defined ONES
#define ONES 0
#include "fizzbuzz.c"
#define ONES 1
#include "fizzbuzz.c"
#define ONES 2
#include "fizzbuzz.c"
#define ONES 3
#include "fizzbuzz.c"
#define ONES 4
#include "fizzbuzz.c"
#define ONES 5
#include "fizzbuzz.c"
#define ONES 6
#include "fizzbuzz.c"
#define ONES 7
#include "fizzbuzz.c"
#define ONES 8
#include "fizzbuzz.c"
#define ONES 9
#include "fizzbuzz.c"
#undef TENS
#else
#define CTR PASTE(TENS, ONES)
#if CTR>0 && CTR<=100
#if CTR%15==0
"fizzbuzz"
#elif CTR%5==0
"buzz"
#elif CTR%3==0
"fizz"
#else
STRFY(CTR)
#endif
#if CTR<100
"\n"
#endif
#endif
#undef ONES
#endif
haha :-D
216: how about adding that one here? :)
skrebbel: your design pattern wankfest made me all wet! the LINQ code i didn't even understand, seems like some SQL-ish thingy?
I put something up: 7 versions from the very reasonable to the very unreasonable. :)
https://github.com/tomaes/fizzbuzz/blob/master/fizzbuzz.c
https://github.com/tomaes/fizzbuzz/blob/master/fizzbuzz.c
fizzbuzz.com (74 bytes)
Code:
40 43 D1 CB 72 FC 60 93 BA 36 01 A9 48 12 75 1B
B2 40 A9 20 04 75 14 B2 3C 48 74 0F 93 F6 74 48
05 30 30 89 44 46 3C 31 80 D2 0A B4 09 CD 21 61
40 3C 64 76 CD C3 46 69 7A 7A 0A 24 46 69 7A 7A
42 75 7A 7A 0A 24 00 00 0A 24
like always crazy stuffs from rrrola !!!
File dumper + starter for rrrola's version. ;)
Code:
char c[] = {
0x40, 0x43, 0xD1, 0xCB, 0x72, 0xFC, 0x60, 0x93, 0xBA, 0x36, 0x01, 0xA9, 0x48, 0x12, 0x75, 0x1B, 0xB2, 0x40, 0xA9, 0x20, 0x04, 0x75, 0x14, 0xB2, 0x3C, 0x48,
0x74, 0x0F, 0x93, 0xF6, 0x74, 0x48, 0x05, 0x30, 0x30, 0x89, 0x44, 0x46, 0x3C, 0x31, 0x80, 0xD2, 0x0A, 0xB4, 0x09, 0xCD, 0x21, 0x61, 0x40, 0x3C, 0x64, 0x76, 0xCD, 0xC3, 0x46, 0x69, 0x7A, 0x7A, 0x0A, 0x24, 0x46, 0x69, 0x7A, 0x7A,
0x42, 0x75, 0x7A, 0x7A, 0x0A, 0x24, 0x00, 0x00, 0x0A, 0x24 };
FILE * file = fopen ("fizzbuzz.com","wb");
if (file != NULL)
{
fwrite (c, 1, sizeof(c), file );
fclose (file);
}
system("fizzbuzz.com");
rrrola: Is the code public domain? Because I like to throw it into fizzbuzz.c and maybe compress/modify it a little more later on. :)
moar compile-time FizzBuzz
Code:
import std.stdio, std.conv;
void main()
{
enum string ctfeFizzBuzz =
(){
string res = "";
for (int i = 1; i <= 100; ++i)
{
if (0 == i % 15)
res ~= "FizzBuzz";
else if (0 == i % 3)
res ~= "Fizz";
else if (0 == i % 5)
res ~= "Buzz";
else
res ~= to!string(i);
res ~= "\n";
}
return res;
}();
writeln(ctfeFizzBuzz);
}
