2022: init day 16
This commit is contained in:
111
2022/day16/Makefile
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111
2022/day16/Makefile
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@@ -0,0 +1,111 @@
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# AOC daily Makefile - GNU make only.
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#
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# Copyright (C) 2021-2022 Bruno Raoult ("br")
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# Licensed under the GNU General Public License v3.0 or later.
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# Some rights reserved. See COPYING.
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#
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# You should have received a copy of the GNU General Public License along with this
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# program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
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#
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# SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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#
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INPUT := input/input.txt
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SHELL := /bin/bash
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CC := gcc
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BEAR := bear
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CCLSFILE:= compile_commands.json
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LIB := aoc_$(shell uname -m)
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INCDIR := ../include
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LIBDIR := ../lib
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LDFLAGS := -L$(LIBDIR)
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#LDLIB := -l$(LIB) -lm
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LDLIB := -l$(LIB)
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export LD_LIBRARY_PATH = $(LIBDIR)
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CFLAGS += -std=gnu11
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CFLAGS += -O2
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CFLAGS += -g
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# for gprof
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# CFLAGS += -pg
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CFLAGS += -Wall
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CFLAGS += -Wextra
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CFLAGS += -march=native
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# Next one may be useful for valgrind (some invalid instructions)
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# CFLAGS += -mno-tbm
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CFLAGS += -Wmissing-declarations
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CFLAGS += -Wno-unused-result
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CFLAGS += -DDEBUG_DEBUG # activate general debug (debug.c)
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CFLAGS += -DDEBUG_POOL # memory pools management
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VALGRIND := valgrind
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VALGRINDFLAGS := --leak-check=full --show-leak-kinds=all --track-origins=yes \
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--sigill-diagnostics=yes --quiet --show-error-list=yes
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TIME := \time -f "\ttime: %E real, %U user, %S sys\n\tcontext-switch:\t%c+%w, page-faults: %F+%R\n"
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export PATH := .:$(PATH)
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.PHONY: clean all compile assembly memcheck memcheck1 memcheck2 part1 part2 ccls bear org
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all: README.org ccls part1 part2
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memcheck: memcheck1 memcheck2
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memcheck1: aoc-c
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@$(VALGRIND) $(VALGRINDFLAGS) aoc-c -p 1 < $(INPUT)
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memcheck2: aoc-c
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@$(VALGRIND) $(VALGRINDFLAGS) aoc-c -p 2 < $(INPUT)
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@#@valgrind -s --track-origins=yes aoc-c -p 2 < $(INPUT)
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compile: aoc-c
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cpp: aoc-c.i
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assembly: aoc-c.s
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part1: aoc-c
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@#$(TIME) aoc.bash -p 1 < $(INPUT) 2>&1
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@$(TIME) aoc-c -p 1 < $(INPUT)
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part2: aoc-c
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@#$(TIME) aoc.bash -p 2 < $(INPUT) 2>&1
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@$(TIME) aoc-c -p 2 < $(INPUT)
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ccls: $(CCLSFILE)
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clean:
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@rm -f aoc-c core* vgcore* gmon.out aoc-c.s aoc-c.i README.html compile_commands.json
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aoc-c: aoc-c.c common.c
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@echo compiling $<
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$(CC) $(CFLAGS) $(LDFLAGS) -I $(INCDIR) $^ $(LDLIB) -o $@
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# generate pre-processed file (.i) and assembler (.s)
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%.i: %.c
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@echo generating $@
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@$(CC) -E $(CFLAGS) -I $(INCDIR) $< -o $@
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%.s: %.c
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@echo generating $@
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@$(CC) -S -fverbose-asm $(CFLAGS) -I $(INCDIR) $< -o $@
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# generate README.org from README.html (must cleanup !)
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org: README.org
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%.org: %.html
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@echo generating $@. Cleanup before commit !
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@pandoc $< -o $@
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# generate compile_commands.json
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$(CCLSFILE): aoc-c.c Makefile
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$(BEAR) -- make clean compile
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bear: clean
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@touch .ccls-root
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@$(BEAR) -- make compile
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183
2022/day16/README.org
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183
2022/day16/README.org
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@@ -0,0 +1,183 @@
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** --- Day 16: Proboscidea Volcanium ---
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The sensors have led you to the origin of the distress signal: yet
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another handheld device, just like the one the Elves gave you. However,
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you don't see any Elves around; instead, the device is surrounded by
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elephants! They must have gotten lost in these tunnels, and one of the
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elephants apparently figured out how to turn on the distress signal.
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The ground rumbles again, much stronger this time. What kind of cave is
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this, exactly? You scan the cave with your handheld device; it reports
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mostly igneous rock, some ash, pockets of pressurized gas, magma... this
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isn't just a cave, it's a volcano!
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You need to get the elephants out of here, quickly. Your device
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estimates that you have /30 minutes/ before the volcano erupts, so you
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don't have time to go back out the way you came in.
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You scan the cave for other options and discover a network of pipes and
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pressure-release /valves/. You aren't sure how such a system got into a
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volcano, but you don't have time to complain; your device produces a
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report (your puzzle input) of each valve's /flow rate/ if it were opened
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(in pressure per minute) and the tunnels you could use to move between
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the valves.
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There's even a valve in the room you and the elephants are currently
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standing in labeled =AA=. You estimate it will take you one minute to
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open a single valve and one minute to follow any tunnel from one valve
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to another. What is the most pressure you could release?
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For example, suppose you had the following scan output:
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#+begin_example
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Valve AA has flow rate=0; tunnels lead to valves DD, II, BB
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Valve BB has flow rate=13; tunnels lead to valves CC, AA
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Valve CC has flow rate=2; tunnels lead to valves DD, BB
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Valve DD has flow rate=20; tunnels lead to valves CC, AA, EE
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Valve EE has flow rate=3; tunnels lead to valves FF, DD
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Valve FF has flow rate=0; tunnels lead to valves EE, GG
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Valve GG has flow rate=0; tunnels lead to valves FF, HH
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Valve HH has flow rate=22; tunnel leads to valve GG
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Valve II has flow rate=0; tunnels lead to valves AA, JJ
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Valve JJ has flow rate=21; tunnel leads to valve II
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#+end_example
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All of the valves begin /closed/. You start at valve =AA=, but it must
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be damaged or jammed or something: its flow rate is =0=, so there's no
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point in opening it. However, you could spend one minute moving to valve
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=BB= and another minute opening it; doing so would release pressure
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during the remaining /28 minutes/ at a flow rate of =13=, a total
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eventual pressure release of =28 * 13 = 364=. Then, you could spend your
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third minute moving to valve =CC= and your fourth minute opening it,
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providing an additional /26 minutes/ of eventual pressure release at a
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flow rate of =2=, or =52= total pressure released by valve =CC=.
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Making your way through the tunnels like this, you could probably open
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many or all of the valves by the time 30 minutes have elapsed. However,
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you need to release as much pressure as possible, so you'll need to be
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methodical. Instead, consider this approach:
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#+begin_example
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== Minute 1 ==
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No valves are open.
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You move to valve DD.
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== Minute 2 ==
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No valves are open.
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You open valve DD.
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== Minute 3 ==
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Valve DD is open, releasing 20 pressure.
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You move to valve CC.
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== Minute 4 ==
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Valve DD is open, releasing 20 pressure.
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You move to valve BB.
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== Minute 5 ==
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Valve DD is open, releasing 20 pressure.
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You open valve BB.
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== Minute 6 ==
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Valves BB and DD are open, releasing 33 pressure.
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You move to valve AA.
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== Minute 7 ==
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Valves BB and DD are open, releasing 33 pressure.
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You move to valve II.
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== Minute 8 ==
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Valves BB and DD are open, releasing 33 pressure.
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You move to valve JJ.
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== Minute 9 ==
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Valves BB and DD are open, releasing 33 pressure.
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You open valve JJ.
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== Minute 10 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve II.
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== Minute 11 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve AA.
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== Minute 12 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve DD.
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== Minute 13 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve EE.
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== Minute 14 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve FF.
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== Minute 15 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve GG.
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== Minute 16 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You move to valve HH.
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== Minute 17 ==
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Valves BB, DD, and JJ are open, releasing 54 pressure.
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You open valve HH.
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== Minute 18 ==
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Valves BB, DD, HH, and JJ are open, releasing 76 pressure.
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You move to valve GG.
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== Minute 19 ==
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Valves BB, DD, HH, and JJ are open, releasing 76 pressure.
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You move to valve FF.
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== Minute 20 ==
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Valves BB, DD, HH, and JJ are open, releasing 76 pressure.
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You move to valve EE.
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== Minute 21 ==
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Valves BB, DD, HH, and JJ are open, releasing 76 pressure.
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You open valve EE.
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== Minute 22 ==
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Valves BB, DD, EE, HH, and JJ are open, releasing 79 pressure.
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You move to valve DD.
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== Minute 23 ==
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Valves BB, DD, EE, HH, and JJ are open, releasing 79 pressure.
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You move to valve CC.
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== Minute 24 ==
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Valves BB, DD, EE, HH, and JJ are open, releasing 79 pressure.
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You open valve CC.
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== Minute 25 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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== Minute 26 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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== Minute 27 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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== Minute 28 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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== Minute 29 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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== Minute 30 ==
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Valves BB, CC, DD, EE, HH, and JJ are open, releasing 81 pressure.
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#+end_example
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This approach lets you release the most pressure possible in 30 minutes
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with this valve layout, =1651=.
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Work out the steps to release the most pressure in 30 minutes. /What is
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the most pressure you can release?/
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To begin, [[file:16/input][get your puzzle input]].
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Answer:
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17
2022/day16/aoc.h
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17
2022/day16/aoc.h
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@@ -0,0 +1,17 @@
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/* aoc.c: Advent of Code 2022
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*
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* Copyright (C) 2022 Bruno Raoult ("br")
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* Licensed under the GNU General Public License v3.0 or later.
|
||||
* Some rights reserved. See COPYING.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with this
|
||||
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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*/
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#ifndef _AOC_H_
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#define _AOC_H_
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extern int parseargs(int ac, char**av);
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extern int testmode(void);
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#endif /* _AOC_H_ */
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68
2022/day16/common.bash
Normal file
68
2022/day16/common.bash
Normal file
@@ -0,0 +1,68 @@
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#!/usr/bin/env bash
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#
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# common.bash: Advent of Code 2022, common bash functions
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#
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# Copyright (C) 2022 Bruno Raoult ("br")
|
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# Licensed under the GNU General Public License v3.0 or later.
|
||||
# Some rights reserved. See COPYING.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along with this
|
||||
# program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
|
||||
#
|
||||
# SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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# shellcheck disable=2034
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export cmdname=${0##*/}
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export debug=0
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export res
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export LANG=C
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shopt -s extglob
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set -o noglob
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usage() {
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printf "usage: %s [-d DEBUG] [-p PART]\n" "$cmdname"
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exit 1
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}
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checkargs() {
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local part=1
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while getopts p:d: todo; do
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case "$todo" in
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d)
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if [[ "$OPTARG" =~ ^[[:digit:]+]$ ]]; then
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debug="$OPTARG"
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else
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printf "%s: illegal [%s] debug level.\n" "$CMD" "$OPTARG"
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exit 1
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fi
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;;
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p)
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if [[ "$OPTARG" =~ ^[12]$ ]]; then
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part="$OPTARG"
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else
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printf "%s: illegal [%s] part.\n" "$CMD" "$OPTARG"
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exit 1
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||||
fi
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;;
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*)
|
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usage
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||||
;;
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esac
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done
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# Now check remaining argument (backup directory)
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shift $((OPTIND - 1))
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||||
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(( $# > 1 )) && usage
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return "$part"
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}
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|
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main() {
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local -i part
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checkargs "$@"
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part=$?
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parse "$part"
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solve "$part"
|
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printf "%s: res=%s\n" "$cmdname" "$res"
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}
|
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59
2022/day16/common.c
Normal file
59
2022/day16/common.c
Normal file
@@ -0,0 +1,59 @@
|
||||
/* common.c: Advent of Code 2022, common functions
|
||||
*
|
||||
* Copyright (C) 2022 Bruno Raoult ("br")
|
||||
* Licensed under the GNU General Public License v3.0 or later.
|
||||
* Some rights reserved. See COPYING.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with this
|
||||
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
|
||||
*/
|
||||
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||||
#include <stdio.h>
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||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "aoc.h"
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||||
#include "debug.h"
|
||||
|
||||
static int _testmode = 0;
|
||||
|
||||
static int usage(char *prg)
|
||||
{
|
||||
fprintf(stderr, "Usage: %s [-t][-d debug_level] [-p part] [-i input]\n", prg);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int testmode(void)
|
||||
{
|
||||
return _testmode;
|
||||
}
|
||||
|
||||
int parseargs(int ac, char **av)
|
||||
{
|
||||
int opt, part = 1;
|
||||
|
||||
while ((opt = getopt(ac, av, "td:p:")) != -1) {
|
||||
switch (opt) {
|
||||
case 't':
|
||||
_testmode = 1;
|
||||
break;
|
||||
case 'd':
|
||||
debug_level_set(atoi(optarg));
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||||
break;
|
||||
case 'p': /* 1 or 2 */
|
||||
part = atoi(optarg);
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||||
if (part < 1 || part > 2)
|
||||
return usage(*av);
|
||||
break;
|
||||
case 'i':
|
||||
|
||||
default:
|
||||
return usage(*av);
|
||||
}
|
||||
}
|
||||
if (optind < ac)
|
||||
return usage(*av);
|
||||
return part;
|
||||
}
|
||||
10
2022/day16/input/example.txt
Normal file
10
2022/day16/input/example.txt
Normal file
@@ -0,0 +1,10 @@
|
||||
Valve AA has flow rate=0; tunnels lead to valves DD, II, BB
|
||||
Valve BB has flow rate=13; tunnels lead to valves CC, AA
|
||||
Valve CC has flow rate=2; tunnels lead to valves DD, BB
|
||||
Valve DD has flow rate=20; tunnels lead to valves CC, AA, EE
|
||||
Valve EE has flow rate=3; tunnels lead to valves FF, DD
|
||||
Valve FF has flow rate=0; tunnels lead to valves EE, GG
|
||||
Valve GG has flow rate=0; tunnels lead to valves FF, HH
|
||||
Valve HH has flow rate=22; tunnel leads to valve GG
|
||||
Valve II has flow rate=0; tunnels lead to valves AA, JJ
|
||||
Valve JJ has flow rate=21; tunnel leads to valve II
|
||||
54
2022/day16/input/input.txt
Normal file
54
2022/day16/input/input.txt
Normal file
@@ -0,0 +1,54 @@
|
||||
Valve EJ has flow rate=25; tunnel leads to valve MC
|
||||
Valve WC has flow rate=0; tunnels lead to valves OW, RU
|
||||
Valve NP has flow rate=0; tunnels lead to valves VR, KL
|
||||
Valve AA has flow rate=0; tunnels lead to valves QT, AP, EZ, AK, XV
|
||||
Valve VO has flow rate=6; tunnels lead to valves KM, RF, HS, LJ, IA
|
||||
Valve CB has flow rate=0; tunnels lead to valves UI, UP
|
||||
Valve TE has flow rate=18; tunnel leads to valve JT
|
||||
Valve CZ has flow rate=0; tunnels lead to valves UP, OW
|
||||
Valve LJ has flow rate=0; tunnels lead to valves DV, VO
|
||||
Valve UP has flow rate=7; tunnels lead to valves SK, CB, CZ
|
||||
Valve FP has flow rate=0; tunnels lead to valves OW, RE
|
||||
Valve KM has flow rate=0; tunnels lead to valves SE, VO
|
||||
Valve DV has flow rate=0; tunnels lead to valves LJ, UM
|
||||
Valve FL has flow rate=0; tunnels lead to valves AH, TS
|
||||
Valve VR has flow rate=24; tunnels lead to valves DM, TF, NP
|
||||
Valve IA has flow rate=0; tunnels lead to valves VS, VO
|
||||
Valve RF has flow rate=0; tunnels lead to valves VO, JF
|
||||
Valve RT has flow rate=0; tunnels lead to valves UM, SE
|
||||
Valve RU has flow rate=0; tunnels lead to valves AR, WC
|
||||
Valve SE has flow rate=4; tunnels lead to valves GU, KM, CX, RT
|
||||
Valve MC has flow rate=0; tunnels lead to valves EJ, AR
|
||||
Valve TF has flow rate=0; tunnels lead to valves AH, VR
|
||||
Valve CX has flow rate=0; tunnels lead to valves SE, TO
|
||||
Valve GL has flow rate=11; tunnels lead to valves UY, KL, CY
|
||||
Valve GU has flow rate=0; tunnels lead to valves SE, EZ
|
||||
Valve VS has flow rate=0; tunnels lead to valves XN, IA
|
||||
Valve EZ has flow rate=0; tunnels lead to valves AA, GU
|
||||
Valve GK has flow rate=0; tunnels lead to valves FI, HZ
|
||||
Valve JT has flow rate=0; tunnels lead to valves TE, XN
|
||||
Valve DM has flow rate=0; tunnels lead to valves VR, HZ
|
||||
Valve AR has flow rate=16; tunnels lead to valves UI, RU, MC
|
||||
Valve XN has flow rate=9; tunnels lead to valves XP, JT, VS, GT, CY
|
||||
Valve CY has flow rate=0; tunnels lead to valves XN, GL
|
||||
Valve QT has flow rate=0; tunnels lead to valves UM, AA
|
||||
Valve KL has flow rate=0; tunnels lead to valves GL, NP
|
||||
Valve SK has flow rate=0; tunnels lead to valves XV, UP
|
||||
Valve OW has flow rate=12; tunnels lead to valves CZ, WC, FP
|
||||
Valve AK has flow rate=0; tunnels lead to valves AA, HS
|
||||
Valve XV has flow rate=0; tunnels lead to valves AA, SK
|
||||
Valve GT has flow rate=0; tunnels lead to valves XN, UM
|
||||
Valve FI has flow rate=0; tunnels lead to valves JF, GK
|
||||
Valve UY has flow rate=0; tunnels lead to valves JF, GL
|
||||
Valve UM has flow rate=5; tunnels lead to valves DV, GT, RT, QT
|
||||
Valve IQ has flow rate=0; tunnels lead to valves HZ, AH
|
||||
Valve JF has flow rate=10; tunnels lead to valves RF, FI, UY, RE, TS
|
||||
Valve TS has flow rate=0; tunnels lead to valves JF, FL
|
||||
Valve AH has flow rate=23; tunnels lead to valves IQ, FL, TF
|
||||
Valve HS has flow rate=0; tunnels lead to valves AK, VO
|
||||
Valve HZ has flow rate=20; tunnels lead to valves IQ, DM, GK
|
||||
Valve TO has flow rate=15; tunnel leads to valve CX
|
||||
Valve XP has flow rate=0; tunnels lead to valves AP, XN
|
||||
Valve AP has flow rate=0; tunnels lead to valves XP, AA
|
||||
Valve RE has flow rate=0; tunnels lead to valves JF, FP
|
||||
Valve UI has flow rate=0; tunnels lead to valves AR, CB
|
||||
Reference in New Issue
Block a user