2022 day 17 init
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111
2022/day17/Makefile
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111
2022/day17/Makefile
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# AOC daily Makefile - GNU make only.
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#
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# Copyright (C) 2021-2023 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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374
2022/day17/README.org
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374
2022/day17/README.org
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** --- Day 17: Pyroclastic Flow ---
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Your handheld device has located an alternative exit from the cave for
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you and the elephants. The ground is rumbling almost continuously now,
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but the strange valves bought you some time. It's definitely getting
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warmer in here, though.
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The tunnels eventually open into a very tall, narrow chamber. Large,
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oddly-shaped rocks are falling into the chamber from above, presumably
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due to all the rumbling. If you can't work out where the rocks will fall
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next, you might be crushed!
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The five types of rocks have the following peculiar shapes, where =#= is
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rock and =.= is empty space:
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#+begin_example
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####
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.#.
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###
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.#.
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..#
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..#
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###
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#
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#
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#
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#
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##
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##
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#+end_example
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The rocks fall in the order shown above: first the =-= shape, then the
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=+= shape, and so on. Once the end of the list is reached, the same
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order repeats: the =-= shape falls first, sixth, 11th, 16th, etc.
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The rocks don't spin, but they do get pushed around by jets of hot gas
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coming out of the walls themselves. A quick scan reveals the effect the
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jets of hot gas will have on the rocks as they fall (your puzzle input).
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For example, suppose this was the jet pattern in your cave:
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#+begin_example
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>>><<><>><<<>><>>><<<>>><<<><<<>><>><<>>
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#+end_example
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In jet patterns, =<= means a push to the left, while =>= means a push to
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the right. The pattern above means that the jets will push a falling
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rock right, then right, then right, then left, then left, then right,
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and so on. If the end of the list is reached, it repeats.
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The tall, vertical chamber is exactly /seven units wide/. Each rock
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appears so that its left edge is two units away from the left wall and
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its bottom edge is three units above the highest rock in the room (or
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the floor, if there isn't one).
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After a rock appears, it alternates between /being pushed by a jet of
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hot gas/ one unit (in the direction indicated by the next symbol in the
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jet pattern) and then /falling one unit down/. If any movement would
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cause any part of the rock to move into the walls, floor, or a stopped
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rock, the movement instead does not occur. If a /downward/ movement
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would have caused a falling rock to move into the floor or an
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already-fallen rock, the falling rock stops where it is (having landed
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on something) and a new rock immediately begins falling.
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Drawing falling rocks with =@= and stopped rocks with =#=, the jet
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pattern in the example above manifests as follows:
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#+begin_example
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The first rock begins falling:
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|..@@@@.|
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|.......|
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|.......|
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|.......|
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+-------+
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Jet of gas pushes rock right:
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|...@@@@|
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|.......|
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|.......|
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|.......|
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+-------+
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Rock falls 1 unit:
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|...@@@@|
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|.......|
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|.......|
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+-------+
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Jet of gas pushes rock right, but nothing happens:
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|...@@@@|
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|.......|
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|.......|
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+-------+
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Rock falls 1 unit:
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|...@@@@|
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|.......|
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+-------+
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Jet of gas pushes rock right, but nothing happens:
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|...@@@@|
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|.......|
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+-------+
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Rock falls 1 unit:
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|...@@@@|
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+-------+
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Jet of gas pushes rock left:
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|..@@@@.|
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+-------+
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Rock falls 1 unit, causing it to come to rest:
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|..####.|
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+-------+
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A new rock begins falling:
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|...@...|
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|..@@@..|
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|...@...|
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|.......|
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||||||
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|.......|
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||||||
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|.......|
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|..####.|
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+-------+
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Jet of gas pushes rock left:
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|..@....|
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|.@@@...|
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|..@....|
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||||||
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|.......|
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||||||
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|.......|
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|.......|
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|..####.|
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+-------+
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Rock falls 1 unit:
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|..@....|
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|.@@@...|
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|..@....|
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|.......|
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|.......|
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|..####.|
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+-------+
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Jet of gas pushes rock right:
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|...@...|
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||||||
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|..@@@..|
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|...@...|
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|.......|
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|.......|
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|..####.|
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+-------+
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Rock falls 1 unit:
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|...@...|
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||||||
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|..@@@..|
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|...@...|
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||||||
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|.......|
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||||||
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|..####.|
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+-------+
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|
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Jet of gas pushes rock left:
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|..@....|
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||||||
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|.@@@...|
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||||||
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|..@....|
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||||||
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|.......|
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||||||
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|..####.|
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+-------+
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|
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Rock falls 1 unit:
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|..@....|
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|.@@@...|
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|..@....|
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||||||
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|..####.|
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+-------+
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Jet of gas pushes rock right:
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|...@...|
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||||||
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|..@@@..|
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|...@...|
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||||||
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|..####.|
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+-------+
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|
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Rock falls 1 unit, causing it to come to rest:
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|...#...|
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|..###..|
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|...#...|
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||||||
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|..####.|
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+-------+
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A new rock begins falling:
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|....@..|
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||||||
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|....@..|
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||||||
|
|..@@@..|
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||||||
|
|.......|
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||||||
|
|.......|
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||||||
|
|.......|
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||||||
|
|...#...|
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||||||
|
|..###..|
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||||||
|
|...#...|
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||||||
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|..####.|
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+-------+
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#+end_example
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The moment each of the next few rocks begins falling, you would see
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this:
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#+begin_example
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|
|..@....|
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||||||
|
|..@....|
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||||||
|
|..@....|
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||||||
|
|..@....|
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||||||
|
|.......|
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||||||
|
|.......|
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||||||
|
|.......|
|
||||||
|
|..#....|
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||||||
|
|..#....|
|
||||||
|
|####...|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
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||||||
|
+-------+
|
||||||
|
|
||||||
|
|..@@...|
|
||||||
|
|..@@...|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
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||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
|
||||||
|
|..@@@@.|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
|
||||||
|
|...@...|
|
||||||
|
|..@@@..|
|
||||||
|
|...@...|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.####..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
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||||||
|
+-------+
|
||||||
|
|
||||||
|
|....@..|
|
||||||
|
|....@..|
|
||||||
|
|..@@@..|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|..#....|
|
||||||
|
|.###...|
|
||||||
|
|..#....|
|
||||||
|
|.####..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
|
||||||
|
|..@....|
|
||||||
|
|..@....|
|
||||||
|
|..@....|
|
||||||
|
|..@....|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.....#.|
|
||||||
|
|.....#.|
|
||||||
|
|..####.|
|
||||||
|
|.###...|
|
||||||
|
|..#....|
|
||||||
|
|.####..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
|
||||||
|
|..@@...|
|
||||||
|
|..@@...|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|....#..|
|
||||||
|
|....#..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|..####.|
|
||||||
|
|.###...|
|
||||||
|
|..#....|
|
||||||
|
|.####..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
|
||||||
|
|..@@@@.|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|.......|
|
||||||
|
|....#..|
|
||||||
|
|....#..|
|
||||||
|
|....##.|
|
||||||
|
|##..##.|
|
||||||
|
|######.|
|
||||||
|
|.###...|
|
||||||
|
|..#....|
|
||||||
|
|.####..|
|
||||||
|
|....##.|
|
||||||
|
|....##.|
|
||||||
|
|....#..|
|
||||||
|
|..#.#..|
|
||||||
|
|..#.#..|
|
||||||
|
|#####..|
|
||||||
|
|..###..|
|
||||||
|
|...#...|
|
||||||
|
|..####.|
|
||||||
|
+-------+
|
||||||
|
#+end_example
|
||||||
|
|
||||||
|
To prove to the elephants your simulation is accurate, they want to know
|
||||||
|
how tall the tower will get after 2022 rocks have stopped (but before
|
||||||
|
the 2023rd rock begins falling). In this example, the tower of rocks
|
||||||
|
will be =3068= units tall.
|
||||||
|
|
||||||
|
/How many units tall will the tower of rocks be after 2022 rocks have
|
||||||
|
stopped falling?/
|
||||||
17
2022/day17/aoc.h
Normal file
17
2022/day17/aoc.h
Normal file
@@ -0,0 +1,17 @@
|
|||||||
|
/* aoc.c: Advent of Code 2022
|
||||||
|
*
|
||||||
|
* Copyright (C) 2022-2023 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>
|
||||||
|
*/
|
||||||
|
#ifndef _AOC_H_
|
||||||
|
#define _AOC_H_
|
||||||
|
|
||||||
|
extern int parseargs(int ac, char**av);
|
||||||
|
extern int testmode(void);
|
||||||
|
#endif /* _AOC_H_ */
|
||||||
68
2022/day17/common.bash
Normal file
68
2022/day17/common.bash
Normal file
@@ -0,0 +1,68 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
#
|
||||||
|
# common.bash: Advent of Code 2022, common bash functions
|
||||||
|
#
|
||||||
|
# Copyright (C) 2022-2023 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>
|
||||||
|
|
||||||
|
# shellcheck disable=2034
|
||||||
|
export cmdname=${0##*/}
|
||||||
|
export debug=0
|
||||||
|
export res
|
||||||
|
export LANG=C
|
||||||
|
|
||||||
|
shopt -s extglob
|
||||||
|
set -o noglob
|
||||||
|
|
||||||
|
usage() {
|
||||||
|
printf "usage: %s [-d DEBUG] [-p PART]\n" "$cmdname"
|
||||||
|
exit 1
|
||||||
|
}
|
||||||
|
|
||||||
|
checkargs() {
|
||||||
|
local part=1
|
||||||
|
while getopts p:d: todo; do
|
||||||
|
case "$todo" in
|
||||||
|
d)
|
||||||
|
if [[ "$OPTARG" =~ ^[[:digit:]+]$ ]]; then
|
||||||
|
debug="$OPTARG"
|
||||||
|
else
|
||||||
|
printf "%s: illegal [%s] debug level.\n" "$CMD" "$OPTARG"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
p)
|
||||||
|
if [[ "$OPTARG" =~ ^[12]$ ]]; then
|
||||||
|
part="$OPTARG"
|
||||||
|
else
|
||||||
|
printf "%s: illegal [%s] part.\n" "$CMD" "$OPTARG"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
usage
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
# Now check remaining argument (backup directory)
|
||||||
|
shift $((OPTIND - 1))
|
||||||
|
|
||||||
|
(( $# > 1 )) && usage
|
||||||
|
return "$part"
|
||||||
|
}
|
||||||
|
|
||||||
|
main() {
|
||||||
|
local -i part
|
||||||
|
|
||||||
|
checkargs "$@"
|
||||||
|
part=$?
|
||||||
|
parse "$part"
|
||||||
|
solve "$part"
|
||||||
|
printf "%s: res=%s\n" "$cmdname" "$res"
|
||||||
|
}
|
||||||
59
2022/day17/common.c
Normal file
59
2022/day17/common.c
Normal file
@@ -0,0 +1,59 @@
|
|||||||
|
/* common.c: Advent of Code 2022, common functions
|
||||||
|
*
|
||||||
|
* Copyright (C) 2022-2023 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>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
|
||||||
|
#include "aoc.h"
|
||||||
|
#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));
|
||||||
|
break;
|
||||||
|
case 'p': /* 1 or 2 */
|
||||||
|
part = atoi(optarg);
|
||||||
|
if (part < 1 || part > 2)
|
||||||
|
return usage(*av);
|
||||||
|
break;
|
||||||
|
case 'i':
|
||||||
|
|
||||||
|
default:
|
||||||
|
return usage(*av);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (optind < ac)
|
||||||
|
return usage(*av);
|
||||||
|
return part;
|
||||||
|
}
|
||||||
1
2022/day17/input/example.txt
Normal file
1
2022/day17/input/example.txt
Normal file
@@ -0,0 +1 @@
|
|||||||
|
>>><<><>><<<>><>>><<<>>><<<><<<>><>><<>>
|
||||||
1
2022/day17/input/input.txt
Normal file
1
2022/day17/input/input.txt
Normal file
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user