rename repo, subdir for yearly challenges

2020/day07/ex1.bash

@@ -0,0 +1,78 @@
+#!/bin/bash
+#
+# ex1.bash: Advent2020 game, day 7/game 1.
+
+CMD=${0##*/}
+shopt -s extglob
+
+declare -A CONT
+declare -A match
+
+function search() {
+	local -i ret=1
+	local val="$1" key="$2"
+	local cont="${CONT[$key]}"
+	if [[ $cont =~ $val ]]; then
+		match[$key]=1
+		ret=0
+	fi
+	#printf "search val=%s key=%s cont=[%s] ret=%d\n"  "$val" "$key" "$cont"  "$ret"
+	return $ret
+}
+
+function contains() {
+	local -i
+	local value="$1"
+
+	for container in "${!CONT[@]}"; do
+		if [[ ${match[$container]} = "" ]]; then
+			if search "$value" "$container" ; then
+				contains "$container"
+			fi
+		fi
+	done
+}
+
+function parse() {
+	local -a val=("$@")
+	local container="" in=""
+	local -i i=0 num=0
+	# get container
+	while [[ ! "${val[$i]}" =~ bag[s]* ]]; do
+		container+="${val[$i]}"
+		((i++))
+	done
+	CONT[$container]=""
+	((i++))
+	while [[ -n "${val[$i]}" ]]; do
+		case "${val[$i]}" in
+			contain)
+				#echo contain
+				;;
+			[[:digit:]]*)
+				num=${val[$i]}
+				;;
+			bag*)
+				CONT[$container]+="$num "
+				CONT[$container]+="$in "
+				in=""
+				num=0
+				;;
+			*)
+				in+="${val[$i]}"
+				;;
+		esac
+		((i++))
+	done
+}
+
+declare -a array
+while read -r -a array; do
+	parse "${array[@]}"
+done
+target="shinygold"
+match=()
+contains $target
+printf "%s : target=%s nkeys=%d res=%d\n" "$CMD" "$target" "${#CONT[@]}" "${#match[@]}"
+
+exit 0