+++ /dev/null
-#!/bin/bash
-
-parse_line() {
- line=$1
- row=${line:0:7}
- col=${line:7}
- row_number=$(row_part=${row//F/0}; row_part=${row_part//B/1}; echo $((2#$row_part)))
- col_number=$(col_part=${col//L/0}; col_part=${col_part//R/1}; echo $((2#$col_part)))
- seat_id=$((($row_number*8) + $col_number))
- echo "$seat_id,$row_number,$col_number"
-}
-
-exec 3<input.txt
-
-declare -A seats
-
-while read -u 3 line; do
- data=$(parse_line $line)
- seat_id=${data%%,*}
- row_col=${data#*,}
- seats[$seat_id]=$row_col
-done
-
-sorted_seats=( $(echo "${!seats[@]}" | tr ' ' '\n' | sort -g) )
-
-echo Last seat id: ${sorted_seats[$((${#sorted_seats[@]}-1))]}
-
-# find our seat by going through the sorted list and finding the first mismatch
-seat_num=${sorted_seats[0]}
-for seat in ${sorted_seats[@]}; do
- if [ $seat -ne $seat_num ]; then
- echo "Your seat number is: $seat_num"
- break
- fi
- seat_num=$((seat_num+1))
-done
-
-exit 0
-