X-Git-Url: https://git.sommitrealweird.co.uk/advent-of-code-2020.git/blobdiff_plain/cbae7f56fa71a044b470e77b689cb8a0c0a46733..a2ce7bb47964e226d4b10b791a038ca1f1fa67d7:/day5/other_ways.txt

diff --git a/day5/other_ways.txt b/day5/other_ways.txt
new file mode 100644
index 0000000..62ea744
--- /dev/null
+++ b/day5/other_ways.txt
@@ -0,0 +1,3 @@
+Getting last seat id: cat input.txt | sed -e 's#[FL]#0#g; s#[BR]#1#g;' | sort | tail -n 1 | (read x; echo $((2#$x)))
+
+Getting my seat id: cat input.txt | sed 's|[FL]|0|g; s|[BR]|1|g' | sort | sed -ne '1 { x; }; 2,$ { H; x; s#\n#-#g; /10-/ { s#^.*-##; /00$/ {p; q} }; /01-/ { s#^.*-##; /11$/ {p; q; } }; /11-/ { s#^.*-##; /01$/ {p; q; } }; s#^.*-##; x; }' | ( read x; echo $((2#$x - 1)) )