02.sh - aoc22 - 2022 Advent of Code
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       02.sh (954B)
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            1 #!/bin/sh
            2 
            3 pc_score=0
            4 me_score=0
            5 
            6 while read -r line; do
            7         pc="${line% *}"
            8         me="${line#* }"
            9 
           10         # A => rock, 1
           11         # B => paper, 2
           12         # C => scissors, 3
           13         # X => lose
           14         # Y => draw
           15         # Z => win
           16         case "${pc}${me}" in
           17         AX)
           18                 pc_score=$(( pc_score + 1 + 6 ))
           19                 me_score=$(( me_score + 3 + 0 ))
           20                 ;;
           21         BX)
           22                 pc_score=$(( pc_score + 2 + 6 ))
           23                 me_score=$(( me_score + 1 + 0 ))
           24                 ;;
           25         CX)
           26                 pc_score=$(( pc_score + 3 + 6 ))
           27                 me_score=$(( me_score + 2 + 0 ))
           28                 ;;
           29         AY)
           30                 pc_score=$(( pc_score + 1 + 3 ))
           31                 me_score=$(( me_score + 1 + 3 ))
           32                 ;;
           33         BY)
           34                 pc_score=$(( pc_score + 2 + 3 ))
           35                 me_score=$(( me_score + 2 + 3 ))
           36                 ;;
           37         CY)
           38                 pc_score=$(( pc_score + 3 + 3 ))
           39                 me_score=$(( me_score + 3 + 3 ))
           40                 ;;
           41         AZ)
           42                 pc_score=$(( pc_score + 1 + 0 ))
           43                 me_score=$(( me_score + 2 + 6 ))
           44                 ;;
           45         BZ)
           46                 pc_score=$(( pc_score + 2 + 0 ))
           47                 me_score=$(( me_score + 3 + 6 ))
           48                 ;;
           49         CZ)
           50                 pc_score=$(( pc_score + 3 + 0 ))
           51                 me_score=$(( me_score + 1 + 6 ))
           52                 ;;
           53         esac
           54 done
           55 
           56 echo "$me_score"