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tom-henderson/aoc_2022_day1.sh

Created December 2, 2022 02:06
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aoc_2022_day1.sh
#!/bin/bash
totals=()
while read -r item; do
cal=$((cal + item))
if [ -z "$item" ]; then
totals+=($cal)
cal=0
fi
done < input
totals+=($cal)
IFS=$'\n'
echo "Max is $(echo "${totals[*]}" | sort -nr | head -n1)"
total=0
while read -r n; do
total=$((total + n))
done < <(echo "${totals[*]}" | sort -nr | head -n3)
echo "Total for top 3 is $total"
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