20 lines
436 B
Bash
Executable file
20 lines
436 B
Bash
Executable file
#!/usr/bin/env bash
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file="$1"
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horizontal=0
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depth=0
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while read line; do
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direction="$(echo "$line" | cut -d ' ' -f 1)"
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amount="$(echo "$line" | cut -d ' ' -f 2)"
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case "$direction" in
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forward) horizontal=$((horizontal + amount)) ;;
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down) depth="$((depth + amount))" ;;
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up) depth="$((depth - amount))" ;;
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esac
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done < <(cat "$file")
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echo "Horizontal: $horizontal"
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echo "Depth: $depth"
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echo "Product: $(( depth * horizontal ))"
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