2015/advent1.sh

   1 # part 1
   2 echo $(( $(tr -d -c \( < day1.input | wc -c) - \
   3          $(tr -d -c \) < day1.input | wc -c) ))
   4
   5
   6 # part 2
   7 i=0 floor=0
   8 for act in $(sed 's/(/ +1/g; s/)/ -1/g' < day1.input); do
   9     i=$((i+1)) floor=$((floor $act))
  10     if test $floor -lt 0; then
  11         echo $i
  12         break
  13     fi
  14 done