day 1 - faster

day1/day1.sh

@@ -45,6 +45,12 @@ for number in $(cat "$1" | sed s/[^0-9]//g); do
 done
 printf "part 1: %d\n" $sum
 
+sum=0
+for number in $(cat "$1" | sed s/one/o1e/g | sed s/two/t2o/g | sed s/three/t3hee/g | sed s/four/f4ur/g | sed s/five/f5ve/g | sed s/six/s6x/g | sed s/seven/s7ven/g | sed s/eight/e8ght/g | sed s/nine/n9ne/g | sed s/[^0-9]//g); do
+	sum=$((sum+${number:0:1}*10+${number:${#number}-1:${#number}}))
+done
+printf "part 2 (faster alt): %d\n" $sum
+
 sum=0;
 for line in $(cat "$1"); do
 	number="$(replacedigits $line)"