Add 1998/schweikh3 alt code
This is for the rare case that the author described where the size needs to be increased: it can now be done when compiling without having to update the code. The original code is the recommended one try first; if any of '-D' macros are not defined it will use the default, including the size one. This so to make it easier to redefine just one, rather than having to specify all the -D options.
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Cody Boone Ferguson committed
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@@ -1,4 +1,5 @@
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schweikh3
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schweikh3.alt
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file1
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file2
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file3
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@@ -113,8 +113,8 @@ OBJ= ${PROG}.o
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DATA= samefile.1
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TARGET= ${PROG}
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#
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ALT_OBJ=
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ALT_TARGET=
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ALT_OBJ= ${PROG}.alt.o
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ALT_TARGET= ${PROG}.alt
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#################
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@@ -13,15 +13,8 @@ the same size (on systems where `sizeof (char *) == 4`, or `4096` when
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31.
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```
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so we changed the constant to be `SZ` defined in the Makefile. To change the
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value you can do something like:
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```sh
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make clobber CDEFINE="-DM0=sizeof -DM1=long -DM2=void \
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-DM3=realloc -DM4=calloc -DM5=free -DSZ=55555" all
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```
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or whatever you wish to redefine it to.
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An alternate version allows one to fix this; see [alternate
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code](#alternate-code) below.
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## To use:
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@@ -48,6 +41,26 @@ If you're in this winning entry's directory:
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Notice that the tool finds some files that are duplicates.
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## Alternate code:
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If you run into the problem that the author described (above) you can redefine
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the size as described; this was done with the `SZ` macro defined in the Makefile
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which if (in the code) is unset will be set to the default, 32767.
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### Alternate build:
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If you wish to change the size to say, 55555:
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```sh
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make clobber CDEFINE="-DSZ=55555" alt
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```
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or whatever you wish to redefine it to. See [alternate code](#alternate-code)
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below.
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## Judges' remarks:
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This program is not as smart as to detect identity of JPEG files with the same
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@@ -0,0 +1,85 @@
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%:define _POSIX_SOURCE
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#include<fcntl.h>
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#include<stdio.h>
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#include<unistd.h>
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#include<stdlib.h>
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#include<string.h>
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#include<sys/types.h>
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#include<sys/stat.h>
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#ifndef M0
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#define M0 sizeof
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#endif
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#ifndef M1
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#define M1 long
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#endif
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#ifndef M2
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#define M2 void
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#endif
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#ifndef M3
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#define M3 realloc
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#endif
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#ifndef M4
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#define M4 calloc
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#endif
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#ifndef M5
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#define M5 free
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#endif
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#ifndef SZ
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#define SZ 32767
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#elif SZ < 32767
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#undef SZ
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#define SZ 32767
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#endif
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#define D(N,t)Z t*N V<%t*z U M0*z); H z)u z; X}
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#define k(x,y)x<0||fstat(x,&y)||
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#define h(x)=open(x,O_RDONLY)
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#define b(x),(int)x.st_nlink
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#define B ;typedef g
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#define X exit (1);
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#define O .st_size
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#define U =malloc(
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#define Y S.st_ino
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#define v ;%>else
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#define W .st_dev
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#define o ||read(
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#define Z static
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#define g struct
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#define u return
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#define I char*
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#define V (M2)
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#define H if(
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#define _ ->
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/* HE WHO SAYS */
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Z I A<: SZ/ M0(I )]; Z g stat S,T; Z size_t y B f{
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I n ; g f * x ; dev_t d ; ino_t i; } f B t{ M1 s,c; f
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*l; g t*L,*R; } t; D(a,t)D(E ,f)Z t*J(t*p,I n){ H! p){ p=
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a(); p _ s =S O; p _ c=1; p _ L=p _ R=0;
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p _ l= E(); p _ l _ n=n; p _ l _ x=0; p
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_ l _ d=S W; p _ l _ i= Y v H S O==p _
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s){ f* e; for (e=p _ l; e; e=e _ x) { H S W==e _
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d&&Y== e _ i) { u p; } } e=E(); e _ x=p _ l; e _
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n=n; e _ d =S W; e _ i=Y; p _ l=e; ++p _
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c v H S O< p _ s) { p _ L= J( p _ L,n)v{
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p _ R= J (p _ R,n ); } u p ; } Z int Q(
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I G,I F){ int d h(G),D h(F); I m,*M; H k(d,S )k(D,T )(y =S
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O)-T O){ y= 0; goto d; } H! (m U y))||!(M U y))o d ,m,y)-
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y o D,M,y)-y) X y=!memcmp( m,M,y); M5(m) ; M5(M ); d:V
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close (d );V close(D); u y; } Z M2 C(M1 z,M1 N){ M1 i=N*(N-1)/2,
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j=1,s; I q,*e,* p,*w,*l; e=q= M4((size_t)i,1); H!e) X p=q+i; for(i=0; e-p
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; ++e){ H!*e&&Q (A[i:>,A[j])){ V printf("%""l""d" "\t""%" "s""\t" "%""s"
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"??/t" "%""c" "\11" "%""d" "??/t" "%""d" "\n", z,A[i]
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,A[j], S W -T W?'X' :'='b( S)b(T) ); H j -i-1) { s=N-
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i-3; w =e+s+1; l=q+N* (j-1)- j*(j-1 )/ 2 ; do{ *w
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=1; H w==l) break; w+= s; } while( s-->0); } } H++j ==N){ j=i+++
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2; } } M5(q); } Z M2 P(t*p ){ H p){ P(p _ R); H p _ c>1){ M1 i=0
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; f*l= p _ l; for (; i< p _ c; ++i ){ A[i
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]= l _ n; l=l _ x; } C (p _ s, p _ c); } P (p _
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L) ; } } int main V { t*r= 0; I F ; for (; ; )
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{ H!(F U 1024)) )X H ! fgets( F,1024 ,stdin) )break; *(F+(y
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=strlen(F))-1)= 0; H!( F=M3(F, y)))X H stat(F,&S)==0 &&S_ISREG(S.
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st_mode)&&S O )r=J(r ,F ); } H r)P(r ); u 0; }/* Obfuscated C
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IS FREE THINKS MONEY GROWS ON DIRECTORY TREE */
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