add notices to those who wish for a greater challenge
We add the following level-3 header to help people identify text they may wish to skip if they wish for a greater challenge: ``` ``` After that notice we add: ``` **If you want a greater challenge, don't read any further**: just try to understand the program via the source. If you get stuck, come back and read below for additional hints and information. ``` And sometimes follow with: ``` ``` Or sometimes follow with: ``` ``` Where the alt code impacts a "greater challenge", we add instead: ``` **If you want a greater challenge, don't read any further**: just try to understand the program without looking at the Alternate code. If you get stuck, come back and look at the Alternate code. ``` And where a given command impacts a "greater challenge", we add instead: ``` **If you want a greater challenge, don't read any further**: just try to understand the program without running the command below. If you get stuck, come back and run the following command: ``` Perform `make www` to perform the above and test under macOS.
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@@ -40,7 +40,7 @@ The [Most likely to be awarded - 2018/ciura](ciura/index.html) has an amazing vo
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There are also nods to entries of the years [2000/bellard](../2000/bellard/index.html),
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[2015/yang](../2015/yang/index.html), ...
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...We'll stop spouting spoilers now. Have fun exploring all the entries!
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...We'll stop spouting too many details now. Have fun exploring all the entries!
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### Historical note:
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@@ -64,10 +64,16 @@ This code has been compiled and tested on:
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* UNIX V7 pcc (Johnson's C compiler) on a [simulated PDP-11/45](http://simh.trailing-edge.com/)
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(see the "**SPOILER** section below for further detail)
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<div style="margin-bottom:60em;margin-top:4em"><strong>Spoiler below; scroll down.</strong></div>
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### NOTICE to those who wish for a greater challenge
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**If you want a greater challenge, don't read any further**:
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just try to understand the program via the source.
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If you get stuck, come back and read below for additional hints and information.
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### SPOILER:
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### How this entry works:
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This started life as a personal challenge: write the shortest hex dump utility
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in C.
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@@ -434,10 +434,11 @@ It adds several nice-to-have features, and allows salt-to-taste customizability.
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<li>UNIX V7 pcc (Johnson’s C compiler) on a <a href="http://simh.trailing-edge.com/">simulated PDP-11/45</a>
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(see the “<strong>SPOILER</strong> section below for further detail)</li>
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</ul>
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<div style="margin-bottom:60em;margin-top:4em">
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<strong>Spoiler below; scroll down.</strong>
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</div>
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<h3 id="spoiler">SPOILER:</h3>
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<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
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<p><strong>If you want a greater challenge, don’t read any further</strong>:
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just try to understand the program via the source.</p>
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<p>If you get stuck, come back and read below for additional hints and information.</p>
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<h3 id="how-this-entry-works">How this entry works:</h3>
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<p>This started life as a personal challenge: write the shortest hex dump utility
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in C.</p>
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<p>The self-imposed ground rules in the hunt for shortest:</p>
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+1
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@@ -412,7 +412,7 @@ It is something completely different.</p>
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<p>The <a href="ciura/index.html">Most likely to be awarded - 2018/ciura</a> has an amazing vocabulary!</p>
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<p>There are also nods to entries of the years <a href="../2000/bellard/index.html">2000/bellard</a>,
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<a href="../2015/yang/index.html">2015/yang</a>, …</p>
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<p>…We’ll stop spouting spoilers now. Have fun exploring all the entries!</p>
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<p>…We’ll stop spouting too many details now. Have fun exploring all the entries!</p>
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<h3 id="historical-note">Historical note:</h3>
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<p>In 2023-2024 the IOCCC website was drastically changed with the same look for
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every year and this changed the styling as well. But in 2018 different years had
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+10
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@@ -65,7 +65,15 @@ So I had to sit down and solve those tricky questions with Nano and a C
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compiler.
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### Little spoilers:
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### NOTICE to those who wish for a greater challenge
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**If you want a greater challenge, don't read any further**:
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just try to understand the program via the source.
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If you get stuck, come back and read below for additional hints and information.
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### Little hints:
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Basically, the program draws animated ASCII art of the Big Dipper using Annie
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Jump Cannon's spectral classification system of stars and I think the colors of
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@@ -121,7 +129,7 @@ mostly is okay. YMMV, as they say.
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Please do not feed little babies chocolate.
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### Major spoilers:
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### Major hints:
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I incorporated the [Fletcher 16 checksum
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algorithm](https://en.wikipedia.org/wiki/Fletcher%27s_checksum) into the source
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@@ -429,7 +429,11 @@ file <em>poikola.pdf</em>.</p>
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this star and may I have some Easter eggs?”</p>
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<p>So I had to sit down and solve those tricky questions with Nano and a C
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compiler.</p>
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<h3 id="little-spoilers">Little spoilers:</h3>
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<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
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<p><strong>If you want a greater challenge, don’t read any further</strong>:
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just try to understand the program via the source.</p>
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<p>If you get stuck, come back and read below for additional hints and information.</p>
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<h3 id="little-hints">Little hints:</h3>
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<p>Basically, the program draws animated ASCII art of the Big Dipper using Annie
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Jump Cannon’s spectral classification system of stars and I think the colors of
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the output are as accurate as possible.</p>
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@@ -467,7 +471,7 @@ show anything at all. In other cases it won’t show all the colours right but
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mostly is okay. YMMV, as they say.</p>
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<h3 id="warnings-and-restrictions-required-by-law">Warnings and restrictions required by law:</h3>
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<p>Please do not feed little babies chocolate.</p>
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<h3 id="major-spoilers">Major spoilers:</h3>
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<h3 id="major-hints">Major hints:</h3>
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<p>I incorporated the <a href="https://en.wikipedia.org/wiki/Fletcher%27s_checksum">Fletcher 16 checksum
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algorithm</a> into the source
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for security reasons; it might be challenging to make changes without breaking
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+12
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@@ -169,17 +169,16 @@ generated5.c: ${PROG}.c right shift
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@${RM} -f $@
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./shift < $< | ./right > $@
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############
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# spoilers #
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############
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########################
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# detailed information #
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########################
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spoiler: spoilers
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details:
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@echo "Really show the detailed information? If you must see it run:"
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@echo
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@echo " make i_give_up_show_me_the_details"
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spoilers:
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@echo "Really show spoilers? Please build this target to confirm:"
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@echo " i_give_up_show_me_the_spoilers"
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i_give_up_show_me_the_spoilers: msg3 msg4 msg5 msg6 msg7 msg8 msg9
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i_give_up_show_me_the_details: msg3 msg4 msg5 msg6 msg7 msg8 msg9
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msg3: generated6.c
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$(CC) $(CFLAGS) $< -o $@
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@@ -229,13 +228,11 @@ generated11.c: generated10.c right shift
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generated12.c: msg7
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./msg7 > $@
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####################################
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# spoilers for the truly impatient #
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####################################
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#####################################################
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# final information message for the truly impatient #
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#####################################################
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spoiler_for_the_truly_impatient: i_just_want_to_see_the_final_message
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i_just_want_to_see_the_final_message: msg11.txt
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the_last_word: msg11.txt
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@${CAT} $<
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msg11.txt: msg11 ${PROG}.c
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+28
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@@ -42,15 +42,6 @@ reveal messages and one more tool that can be used to reveal the final message
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hidden in the original source. All of these can be created using combinations
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of `./left`, `./right` and `./shift` and the additionally generated programs.
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The final message can be revealed using
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``` <!---sh-->
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./msg9 < prog.c
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```
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But what combinations will generate `./msg3`, `./msg4`, `./msg5`, `./msg6`,
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`./msg7`, `./msg8` and finally `./msg9`?
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## Author's remarks:
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@@ -169,6 +160,34 @@ will look weird after rotation, for example.
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`Nuko` compiles without warnings with all compilers above, even with
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`-Wall -Wextra -pedantic` for gcc and clang.
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### NOTICE to those who wish for a greater challenge
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**If you want a greater challenge, don't read any further**:
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just try to understand the program without running the command below.
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If you get stuck, come back and run the following command:
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``` <!---sh-->
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./msg9 < prog.c
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```
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But what combinations will generate `./msg3`, `./msg4`, `./msg5`, `./msg6`,
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`./msg7`, `./msg8` and finally `./msg9`?
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For more hints try:
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``` <!---sh-->
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make details
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```
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And for the last word, try:
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``` <!---sh-->
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make the_last_word
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```
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<!--
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Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
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+11
-4
@@ -424,10 +424,6 @@ that this remark is completely misleading.</p>
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reveal messages and one more tool that can be used to reveal the final message
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hidden in the original source. All of these can be created using combinations
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of <code>./left</code>, <code>./right</code> and <code>./shift</code> and the additionally generated programs.</p>
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<p>The final message can be revealed using</p>
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<pre><code> ./msg9 < prog.c</code></pre>
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<p>But what combinations will generate <code>./msg3</code>, <code>./msg4</code>, <code>./msg5</code>, <code>./msg6</code>,
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<code>./msg7</code>, <code>./msg8</code> and finally <code>./msg9</code>?</p>
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<h2 id="authors-remarks">Author’s remarks:</h2>
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<h3 id="tools-usage">Tools’ usage:</h3>
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<p><code>Nuko</code> is a text rotator: given some text in <code>stdin</code>, <code>Nuko</code> will write the
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@@ -509,6 +505,17 @@ will look weird after rotation, for example.</p>
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</ul>
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<p><code>Nuko</code> compiles without warnings with all compilers above, even with
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<code>-Wall -Wextra -pedantic</code> for gcc and clang.</p>
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<h3 id="notice-to-those-who-wish-for-a-greater-challenge">NOTICE to those who wish for a greater challenge</h3>
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<p><strong>If you want a greater challenge, don’t read any further</strong>:
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just try to understand the program without running the command below.</p>
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<p>If you get stuck, come back and run the following command:</p>
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<pre><code> ./msg9 < prog.c</code></pre>
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<p>But what combinations will generate <code>./msg3</code>, <code>./msg4</code>, <code>./msg5</code>, <code>./msg6</code>,
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<code>./msg7</code>, <code>./msg8</code> and finally <code>./msg9</code>?</p>
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<p>For more hints try:</p>
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<pre><code> make details</code></pre>
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<p>And for the last word, try:</p>
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<pre><code> make the_last_word</code></pre>
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<!--
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Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
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