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Oct 12th, 2005, 3:26 PM
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#1 |
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Programming Guru
 
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Little Challenge For A Bored Programmer
Creating a function that returns the sum of two integers, without any usage of mathematical operators!!
It's a neat challenge, and was a good learning experience for me. After I'm done fixing some minor glitches, I'll post my method in Python. Try it! |
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Oct 12th, 2005, 3:50 PM
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#2 |
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What do you consider a mathematical operator.......
__________________
% rc4 hexkey < input > output
#define S ,t=s[i],s[i]=s[j],s[j]=t /* rc4 hexkey <file */
unsigned char k[256],s[256],i,j,t;main(c,v,e)char**v;{++v;while(++i)s[
i]=i;for(c=0;*(*v)++;k[c++]=e)sscanf((*v)++-1,"%2x",&e);while(j+=s[i]
+k[i%c]S,++i);for(j=0;c=~getchar();putchar(~c^s[t+=s[i]]))j+=s[++i]S;} |
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Oct 12th, 2005, 3:51 PM
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#3 |
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Hold on, even if you write a program that does nothing, wouldn't the eventual machine code, or even the microcode behind the instruction set technically use mathematical operators...
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Oct 12th, 2005, 3:51 PM
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#4 |
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I think he means without +,-,* and /
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Oct 12th, 2005, 3:53 PM
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#5 |
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Yes. But only within the code. I don't mean if the computer is actually doing math. As long as you aren't cheating by making the code do it directly as however the language states:
Pyton exec "print %s%s%s"%(a,chr(43),b) |
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Oct 12th, 2005, 4:11 PM
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#6 |
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Oct 12th, 2005, 4:16 PM
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#7 | |
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Quote:
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Oct 12th, 2005, 4:28 PM
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#8 |
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I eat cake for breakfast.
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Hold on... are we allowed bitwise operators?
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Oct 12th, 2005, 4:31 PM
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#9 |
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What's dat?
o.@ |
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