README.md and Makefile files from various years
These are mostly just formatting fixes but there might be some typos here and there. These years have not been checked thoroughly but I made fixes and want them in for when I do work on them. As far as the Makefiles go: notes were added that correspond to the notes in the README.md files which is why I have put them in the same commit.
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Cody Boone Ferguson committed
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@@ -10,17 +10,17 @@
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make all
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### To run
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### To run:
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./buzzard
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## Judges' comments
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## Judges' comments:
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You will be A-mazed.
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You are invited to try to cheat, ... if you can figure out how! :-)
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## Author's comments
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## Author's comments:
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### HOW TO PLAY:
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@@ -182,7 +182,9 @@ all: data ${TARGET}
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supernova deep_magic magic charon pluto
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${PROG}: ${PROG}.c
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@echo "NOTE: This entry might not compile when using modern compilers."
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@echo "NOTE: This will not compile when using modern compilers because"
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@echo "it relies on a compiler bug which was fixed in gcc 2.3.3 (a very"
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@echo "long time ago now)."
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${RM} -f \"\;main\(\)\{puts\(\"Hello\ World!\"\)\;\}char\*C=\".c
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${CP} lmfjyh.c \"\;main\(\)\{puts\(\"Hello\ World!\"\)\;\}char\*C=\".c
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${CC} ${CFLAGS} \
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@@ -9,7 +9,9 @@
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make all
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NOTE: This entry might not compile when using modern compilers.
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NOTE: This entry will not compile on modern systems because it
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relies on a compiler bug which was fixed in gcc 2.3.3 (a very
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long time ago now).
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### To run
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@@ -17,13 +19,10 @@
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## Judges' comments
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See the makefile for details.
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See the Makefile for details.
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There's more than one way to get around disk quotas. :-)
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There's more than one way to get around disk quotas. :-)
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This entry will not compile on modern systems because it
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relies on a compiler bug which was fixed in gcc 2.3.3 (a very
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long time ago now).
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## Author's comments
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+11
-12
@@ -10,7 +10,12 @@
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make all
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NOTE: This entry might not compile when using modern compilers.
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NOTE: we could not compile this entry under modern macOS but it will work
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fine under linux. It likely fails to compile under macOS because its gcc is
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actually just clang which is more strict about the type of the third
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argument of main(). If you have gcc under macOS it might work just as well.
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We did not test other systems.
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### To run
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@@ -21,7 +26,7 @@
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## Judges' comments
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The octal expression may contain:
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The octal expression may contain:
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unary operators: +, -
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binary operators +, -, *, /, %
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@@ -30,17 +35,11 @@
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octal numbers: octal digits
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grouping: ()
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No spaces are allowed in the expression. To avoid shell expansion,
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one should surround the expression in single quotes.
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No spaces are allowed in the expression. To avoid shell expansion,
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one should surround the expression in single quotes.
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It is a good thing that this program consists of only one
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expression, otherwise it might become hard to understand. :-)
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NOTE: we could not compile this entry under modern macOS but it will work
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fine under linux. It likely fails to compile under macOS because its gcc is
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actually just clang which is more strict about the type of the third
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argument of main(). If you have gcc under macOS it might work just as well.
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We did not test other systems.
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It is a good thing that this program consists of only one
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expression, otherwise it might become hard to understand. :-)
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## Author's comments
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@@ -182,6 +182,8 @@ all: data ${TARGET}
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supernova deep_magic magic charon pluto
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${PROG}: ${PROG}.c
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@echo "NOTE: this entry has different compiler errors based on compilation line."
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@echo "The purpose is to find the right error message to win the game!"
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-${CC} ${CFLAGS} $< -o $@ ${LIBS}
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# alternative executable
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@@ -10,21 +10,26 @@
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make all
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NOTE: the purpose of this entry is to escape the dungeon via the compiler line
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where you get messages as compiler errors. Depending on the compiler line you
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will get different error messages and one compiler line will make you win the
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game!
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### To run
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./westley
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## Judges' comments
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But for something more interesting try compiling it with
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different cc arguments. For example:
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But for something more interesting try compiling it with
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different cc arguments. For example:
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cc -Describe -Door westley.c
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cc -Describe -Drain westley.c
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Not all compiler errors are bad.
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Not all compiler errors are bad.
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For spoilers see the end of the notes from the author below.
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For spoilers see the end of the notes from the author below.
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## Author's comments
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+37
-34
@@ -11,61 +11,64 @@
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make all
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NOTE: This entry uses non-standard args to main() that do not work with modern compilers.
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NOTE: This entry uses non-standard args to main() that do not work with modern compilers.
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### To run
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## To run:
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./dalbec
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## Judges' comments
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## Try:
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The output is mis-leading ... why does it also print 2047?
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Also try:
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./dalbec 3
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why does it output 121?
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Why does it output 121?
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For a hint see:
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http://www.utm.edu/research/primes/prove2.html#sprp
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## Judges' comments:
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and then try to understand the source! :-)
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The output is mis-leading ... why does it also print 2047?
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We (the judges) recommend that you take the time needed to understand
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how this program works. The source is small enough to make the effort
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reasonable, and complex enough to make it interesting.
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For a hint see
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[https://web.archive.org/web/20000510191341/https://www.utm.edu/research/primes/prove2.html](https://web.archive.org/web/20000510191341/https://www.utm.edu/research/primes/prove2.html).
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... and then try to understand the source! :-)
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We (the judges) recommend that you take the time needed to understand
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how this program works. The source is small enough to make the effort
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reasonable, and complex enough to make it interesting.
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## Author's comments
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This program assumes that your terminal wraps lines automatically.
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If this is not the case, you may need to change the space in the
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"printf" format string to a newline character.
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This program assumes that your terminal wraps lines automatically.
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If this is not the case, you may need to change the space in the
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"printf" format string to a newline character.
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An extra feature of this program is that it allows you (in most
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cases) to estimate the stack space available to programs on your
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system. Simply allow the program to run to completion. The stack
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space is roughly proportional to the last number printed.
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An extra feature of this program is that it allows you (in most
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cases) to estimate the stack space available to programs on your
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system. Simply allow the program to run to completion. The stack
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space is roughly proportional to the last number printed.
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(On SunOS/cc, the proportionality constant is about 48 bytes.)
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(On SunOS/cc, the proportionality constant is about 48 bytes.)
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On completion, the program produces a core file that may be used to
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refine this estimate. (Or you could try typing "limit" if you're
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running csh.) In rare cases the stack space may exceed 24*MAXINT
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bytes, in which case the program will produce an inaccurate estimate.
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On completion, the program produces a core file that may be used to
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refine this estimate. (Or you could try typing "limit" if you're
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running `csh`.) In rare cases the stack space may exceed `24*MAXINT`
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bytes, in which case the program will produce an inaccurate estimate.
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This program is obfuscated:
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This program is obfuscated:
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(1) by the use of easily-confused variable names
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1. by the use of easily-confused variable names
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(2) by using the implicit !=0 in conditional expressions
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2. by using the implicit !=0 in conditional expressions
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(3) by substituting expressions such as !a for 0 where a!=0
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and !a for 1 where a==0
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3. by substituting expressions such as !a for 0 where a!=0 and !a for 1 where a==0
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(4) by the fact that main() is a single expression and so beautifies poorly
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4. by the fact that main() is a single expression and so beautifies poorly
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(5) by the fact that main() is used
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(a) to compute powers in modular arithmetic
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(b) to recursively call itself in the main loop
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5. by the fact that main() is used
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- to compute powers in modular arithmetic
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- to recursively call itself in the main loop
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@@ -16,11 +16,11 @@
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## Judges' comments
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We were impressed by the author's ability to render spheres in 3D
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in a very small chunk of code.
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We were impressed by the author's ability to render spheres in 3D
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in a very small chunk of code.
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## Author's comments
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This program shows flying spheres. The program eats CPU on lesser
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equipt systems. The program will run until termination. Terminal
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must be vt100 or better with 80 columns and 24 rows or more.
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This program shows flying spheres. The program eats CPU on lesser
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equipped systems. The program will run until termination. Terminal
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must be vt100 or better with 80 columns and 24 rows or more.
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+22
-20
@@ -12,40 +12,42 @@
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make all
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### To run
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### To run:
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echo 'Huffman Decoding' | ./huffman
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## Judges' comments
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Try:
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## Try:
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echo 'seeing or feeling is believing' | ./huffman
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echo 'CC OR NOT CC' | ./huffman | ./huffman
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If you are still confused and want to read a spoiler, check out
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the source and it will be clear as mud!
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And for a misleading hint, consider who won! :-)
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## Judges' comments:
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And if you really can't see what is going on, here is an extra spoiler:
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If you are still confused and want to read a spoiler, check out
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the source and it will be clear as mud!
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And for a misleading hint, consider who won! :-)
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And if you really can't see what is going on, here is an extra spoiler:
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./huffman < huffman.c
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This entry was very well received at the IOCCC BOF.
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This entry was very well received at the IOCCC BOF.
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## Author's comments
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## Author's comments:
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This filter program is really not obfuscated code. It compiles cleanly
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with an ANSI C compiler and comes with user documentation that even a
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blind person could read.
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This filter program is really not obfuscated code. It compiles cleanly
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with an ANSI C compiler and comes with user documentation that even a
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blind person could read.
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The program is a bi-directional filter with the output of the program
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suitable for its input. The output of this program, when used as input,
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undoes the original program filtering.
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The program is a bi-directional filter with the output of the program
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suitable for its input. The output of this program, when used as input,
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undoes the original program filtering.
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This program accepts any alphanumeric text that has lines less than 100
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characters. The user is encouraged to use the program's source as input
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to the executable.
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This program accepts any alphanumeric text that has lines less than 100
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characters. The user is encouraged to use the program's source as input
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to the executable.
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This program is best appreciated on a tactile monitor.
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This program is best appreciated on a tactile monitor.
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+17
-16
@@ -16,27 +16,28 @@
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./jonth
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## Judges' comments
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Also try:
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## Try:
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./jonth host1:0 host2:0
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## Judges' comments
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For extra credit, figure out how you can cheat by taking over
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a square already occupied by an opponent.
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## Author's comments
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This is mulituser tictactoe for X Windows. You may give one or two X
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displays as arguments to this game.
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Known bugs:
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Sometimes on Solaris X gets confused and this program core dumps,
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solution: give two display arguments (prog host:0 host:0)
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If one (or both) windows look like a copy of the window(s) below,
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try xrefresh command.
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Have a nice(1) day.
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This is multi-user tic-tac-toe for X Windows. You may give one or two X
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displays as arguments to this game.
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Known bugs:
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Sometimes on Solaris X gets confused and this program core dumps,
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solution: give two display arguments (prog host:0 host:0)
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If one (or both) windows look like a copy of the window(s) below,
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try xrefresh command.
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Have a nice(1) day.
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+7
-4
@@ -9,17 +9,20 @@
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make all
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||||
### To run
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### To run:
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./rcm < rfc1951.gz
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## Judges' comments
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## Try:
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And for more information try:
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For more information try:
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./rcm < rfc1952.gz
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For a good noop try:
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## Judges' comments
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For a good noop try:
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gzip -c < rcm.c | ./rcm
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Reference in new issue
Block a user