2019 day 5: Update results & README

2019/RESULTS.txt

@@ -53,3 +53,17 @@ aoc-c : res=2090
 aoc-c : res=1419
 	time: 0:00.00 real, 0.00 user, 0.00 sys
 	context-switch:	0+1, page-faults: 0+89
+
+=========================================
+================= day05 =================
+=========================================
+
++++++++++++++++++ part 1
+aoc-c : res=10987514
+	time: 0:00.00 real, 0.00 user, 0.00 sys
+	context-switch:	0+1, page-faults: 0+87
+
++++++++++++++++++ part 2
+aoc-c : res=14195011
+	time: 0:00.00 real, 0.00 user, 0.00 sys
+	context-switch:	0+1, page-faults: 0+87

2019/day05/README.org

@@ -101,4 +101,84 @@ the diagnostic code, the diagnostic program ran successfully.
 After providing =1= to the only input instruction and passing all the
 tests, /what diagnostic code does the program produce?/
 
-To begin, [[file:5/input][get your puzzle input]].
+Your puzzle answer was =10987514=.
+
+** --- Part Two ---
+The air conditioner comes online! Its cold air feels good for a while,
+but then the TEST alarms start to go off. Since the air conditioner
+can't vent its heat anywhere but back into the spacecraft, it's actually
+making the air inside the ship /warmer/.
+
+Instead, you'll need to use the TEST to extend the
+[[https://en.wikipedia.org/wiki/Spacecraft_thermal_control][thermal
+radiators]]. Fortunately, the diagnostic program (your puzzle input) is
+already equipped for this. Unfortunately, your Intcode computer is not.
+
+Your computer is only missing a few opcodes:
+
+- Opcode =5= is /jump-if-true/: if the first parameter is /non-zero/, it
+  sets the instruction pointer to the value from the second parameter.
+  Otherwise, it does nothing.
+- Opcode =6= is /jump-if-false/: if the first parameter /is zero/, it
+  sets the instruction pointer to the value from the second parameter.
+  Otherwise, it does nothing.
+- Opcode =7= is /less than/: if the first parameter is /less than/ the
+  second parameter, it stores =1= in the position given by the third
+  parameter. Otherwise, it stores =0=.
+- Opcode =8= is /equals/: if the first parameter is /equal to/ the
+  second parameter, it stores =1= in the position given by the third
+  parameter. Otherwise, it stores =0=.
+
+Like all instructions, these instructions need to support /parameter
+modes/ as described above.
+
+Normally, after an instruction is finished, the instruction pointer
+increases by the number of values in that instruction. /However/, if the
+instruction modifies the instruction pointer, that value is used and the
+instruction pointer is /not automatically increased/.
+
+For example, here are several programs that take one input, compare it
+to the value =8=, and then produce one output:
+
+- =3,9,8,9,10,9,4,9,99,-1,8= - Using /position mode/, consider whether
+  the input is /equal to/ =8=; output =1= (if it is) or =0= (if it is
+  not).
+- =3,9,7,9,10,9,4,9,99,-1,8= - Using /position mode/, consider whether
+  the input is /less than/ =8=; output =1= (if it is) or =0= (if it is
+  not).
+- =3,3,1108,-1,8,3,4,3,99= - Using /immediate mode/, consider whether
+  the input is /equal to/ =8=; output =1= (if it is) or =0= (if it is
+  not).
+- =3,3,1107,-1,8,3,4,3,99= - Using /immediate mode/, consider whether
+  the input is /less than/ =8=; output =1= (if it is) or =0= (if it is
+  not).
+
+Here are some jump tests that take an input, then output =0= if the
+input was zero or =1= if the input was non-zero:
+
+- =3,12,6,12,15,1,13,14,13,4,13,99,-1,0,1,9= (using /position mode/)
+- =3,3,1105,-1,9,1101,0,0,12,4,12,99,1= (using /immediate mode/)
+
+Here's a larger example:
+
+#+BEGIN_EXAMPLE
+  3,21,1008,21,8,20,1005,20,22,107,8,21,20,1006,20,31,
+  1106,0,36,98,0,0,1002,21,125,20,4,20,1105,1,46,104,
+  999,1105,1,46,1101,1000,1,20,4,20,1105,1,46,98,99
+#+END_EXAMPLE
+
+The above example program uses an input instruction to ask for a single
+number. The program will then output =999= if the input value is below
+=8=, output =1000= if the input value is equal to =8=, or output =1001=
+if the input value is greater than =8=.
+
+This time, when the TEST diagnostic program runs its input instruction
+to get the ID of the system to test, /provide it =5=/, the ID for the
+ship's thermal radiator controller. This diagnostic test suite only
+outputs one number, the /diagnostic code/.
+
+/What is the diagnostic code for system ID =5=?/
+
+Your puzzle answer was =14195011=.
+
+Both parts of this puzzle are complete! They provide two gold stars: **