code cleanup

2020/day20/Makefile

@@ -20,7 +20,7 @@ ex1:
 	@#$(TIME) ex1-c 2020 < $(INPUT) 2>&1
 
 ex2:
-	@#$(TIME) ex2.bash < $(INPUT) 2>&1
+	@$(TIME) ex2.bash < $(INPUT) 2>&1
 	@#$(TIME) ex1-c 30000000 < $(INPUT) 2>&1
 
 clean:

2020/day20/ex1.bash

@@ -6,10 +6,9 @@ CMD=${0##*/}
 set -o noglob
 shopt -s extglob
 
-#declare -A strings
 declare -a strings T R B L RT RR RB RL nums
+declare -i res=1 count=-1
 
-declare -i count=-1
 while read -r line; do
     case ${line:0:1} in
         T*)
@@ -54,10 +53,9 @@ for key in "${!nums[@]}"; do
 
 done
 
-ALL="${T[@]} ${R[@]} ${B[@]} ${L[@]} ${RT[@]} ${RR[@]} ${RB[@]} ${RL[@]}"
+ALL="${T[*]} ${R[*]} ${B[*]} ${L[*]} ${RT[*]} ${RR[*]} ${RB[*]} ${RL[*]}"
 ALLSIZE=${#ALL}
 
-declare -i res=1 count
 for ((i=0; i<${#nums[@]}; ++i)); do
     count=0