58 lines
1.3 KiB
Bash
Executable File
58 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# aoc.bash: Advent of Code 2022, day 3
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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.
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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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. common.bash
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export LANG=C
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declare -a sections
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parse() {
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local -a _arr
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local -i _tmp
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while IFS=-, read -ra _arr; do
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# arrange the two sections so that the lowest is the first
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printf "_arr=%s\n" "${_arr[*]}"
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if ((_arr[0] > _arr[2])); then
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((_tmp=_arr[0], _arr[0]=_arr[2], _arr[2]=_tmp))
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((_tmp=_arr[1], _arr[1]=_arr[3], _arr[3]=_tmp))
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printf "\t->%s\n" "${_arr[*]}"
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fi
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sections+=("${_arr[*]}")
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done
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#readarray -t input
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}
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part1() {
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declare -ig res=0
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local -a _sect
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for line in "${sections[@]}"; do
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# shellcheck disable=SC2206
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_sect=($line)
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(( _sect[1] >= _sect[3] ||
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(_sect[0] == _sect[2] && _sect[3] >= _sect[1]) )) && (( res++ ))
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done
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}
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solve() {
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if (($1 == 1)); then
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part1
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else
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part2
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fi
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}
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main "$@"
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exit 0
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