doubt in C--(reducing the length of code)

**sangken** · 10-13-2006

instead of worrying bout size of the code, is it not better to worry about it's space and time complexity even more?

**jafet** · 10-14-2006

Code:

int main(void)
{
    system("main.pl");
    return 0;
}

And write the rest of the program in Perl. You'll be surprised to see how small you can go in there.

Check out my sig. Guess what it does. 63 characters including newline... shortest known.

If you want people around you to stop making sarcastic and snide remarks, go work for an embedded systems manufacturer. People will actually endorse your viewpoints and your efforts will be appreciated!

**nardneran** · 10-14-2006

let me get it straight...

This one is meant for a prg which chk the source code length...

i have 2 question...soln for 1st one was..

Code:

a,t=10,c;main(){while(t--){c=1;while((a=getchar())&64)c<<=(a&7)==4|a==70;printf("%d ",c);}}

(91 characters) which got accepted...
but for the 2nd question

Code:

#define b scanf("%d",&
t,a,n; main(){ for(b t);t--;a+=n*(n>0)) b n); printf("%d",a); return 0;}

(84 char)this works but if i remove "return 0;" it doesnt work i want to know why thats it...

In first case i didnt hv return 0; and it worked
but in second if i didnt hv return 0; it is not working why is it so...

**ssharish2005** · 10-14-2006

But my question is why do u want to write the whole code which in just one line, which looks so messy and which is not recommended

ssharish2005

**maxorator** · 10-14-2006

Stupidity rules

**Happy_Reaper** · 10-14-2006

Code:

#define b scanf("%d",&
t,a,n; main(){ for(b t);t--;a+=n*(n>0)) b n); printf("%d",a); return 0;}

Why would you write code like that ? To make it difficult for everyone but you to understand it ?

**maxorator** · 10-14-2006

I think he wants to show someone how "good" program can be done in one line.

**Happy_Reaper** · 10-14-2006

Perhaps. But it doesn't make him 1337.

**nardneran** · 10-14-2006

Cmon its not like that...its a contest question(http://spoj.pl challenge problem)...and they check the efficency of ur code length and obviously right answer too...thatsy...

and btw nobody answered my question...???!!!

**Happy_Reaper** · 10-14-2006

Are they checking efficiency or code length ?

Because your code length doesn't affect efficiency.

**nardneran** · 10-14-2006

ITS just code length....So whats the answer for my question...???why the 2nd soln requires "return 0;"

**Happy_Reaper** · 10-14-2006

I'd say it's because most compilers default main as an int function, hence it expects it to return an integer value. The question rather should be why you didn't get a warning when you didn't have return....

**maxorator** · 10-14-2006

You should NOT give them that code, because removing return 0; and int main() may not be supported by every compiler. And if they compile it and it won't compile, then you're eliminated, am I right?

**anon** · 10-14-2006

I think, it's just stupid to measure code lenght in lines/characters. So if I chose to use descriptive names, that would automatically make me lose? What they should be counting are the ;-s, how many instructions your code has - or something coding related for that matter.

What does this mean in the code: a,t=10,c; ?

**nardneran** · 10-14-2006

@anon..

the c file automatically takes the variables declared as integer type...

@maxorator

the code gets complied but gives a NZEC a non zero error code...and also the output is right...