Start translating to ysh.

2023/4/1/solution.sh

@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-set -o nounset
-set -o pipefail
-if [[ "${TRACE-0}" == "1" ]]; then
-  set -o xtrace
-fi
-
-cd "$(dirname "$0")"
-
-main ()
-{
-  declare -i sum=0
-  while read -r line; do
-    declare -a winning=() mine=() mywinning=()
-    declare -i card_sum=0
-    stripped=$(sed 's/Card\s\{1,3\}[0-9]\{1,3\}: //' <<< "${line}")
-    winning+=($(cut -d '|' -f 1 <<< "${stripped}"))
-    mine+=($(cut -d '|' -f 2 <<< "${stripped}"))
-    for number in "${mine[@]}"; do
-      for w in "${winning[@]}"; do
-        if [[ ${number} -eq ${w} ]]; then
-          mywinning+=("${number}")
-          break
-        fi
-      done
-    done
-    for number in "${mywinning[@]}"; do
-      if [[ card_sum -eq 0 ]]; then
-        card_sum=$((card_sum+1))
-      else
-        card_sum=$((card_sum*2))
-      fi
-    done
-    sum=$((sum+card_sum))
-  done < input.txt
-  echo "${sum}"
-}
-
-main "$@"