pjr.hin

1984-1993模糊 C 源代码竞赛.zip 非常的好,不过这是DOS格式,要用UE去打开.

Most Unusual Data Structure <[e-mail]> Peter J Ruczynski

	Peter J Ruczynski.
	Pyramid Technology Ltd.
	Pyramid House,
	Solatron Road
	Farnborough.
	Hants GU14 7PL
	England, U.K.


Judges' comments:

    This program prints out a string.  Can you figure out how
    it is done?

    By use of pointers to functions returning a struct of pointers 
    to functions!

    Note that some compilers will be unable to compile the
    expression 'X=g()...' in main due to lack of temporary
    value space.  One might want to try replacing main with:

    	main(){X=s().v().o().o().l().S().d().l().i().o().w().N();}
    
    if this is a problem.


Spoiler: (rot13 to read)

    Guvf cebtenz cevagf bhg gur fgevat:

    gur dhvpx oebja sbk whzcrq bire gur ynml qbt

    ol hfr bs cbvagref gb shapgvbaf ergheavat n fgehpg bs cbvagref 
    gb shapgvbaf!


Selected notes from the author: (rot13 to read)

    Vg vf fvzcyr gb znxr gur cebtenz cevag bgure fgevatf.  Rnpu
    nycunorgvpny punenpgre sebz n gb m vf cevagrq bhg nf vgf
    bccbfvgr:

    	n->m o->l p->k rgp

    Gb rapbqr n arj fgevat vachg gur fgevat nf vg vf zrnag gb pbzr bhg:

    	K=f().i().b().b().y().F().q().y().v().b().j().A();

    Abgr: F() ercerfragf n fcnpr naq A() n arjyvar.  Guvf jvyy abj
    cebqhpr...

    	uryyb jbeyq

    By the way, there is actually a piece of code which is not used
    in the original program! I leave it as an intellectual exercise
    to the reader to find out what it is.