41 lines
644 B
Bash
41 lines
644 B
Bash
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#!/bin/bash
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# USAGE: ./sol.sh (n: top elves)
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NUM_ELVES=${1:-3}
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declare -a ELVES=()
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for (( i = 0; i<$NUM_ELVES; i++))
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do
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ELVES+=(0)
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done
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add_to_elves () {
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local max=$1
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for (( i = 0; i<${NUM_ELVES}; i++));
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do
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local tmp="${ELVES[$i]}";
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if [[ $max -ge $tmp ]];
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then
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ELVES[$i]=$max
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max=$tmp
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fi
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done
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}
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CURRENT_ELF=0
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while read -r line
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do
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if [[ -z "$line" ]];
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then
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add_to_elves $CURRENT_ELF
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CURRENT_ELF=0
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else
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CURRENT_ELF=$((CURRENT_ELF+line))
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fi
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done < input
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echo "MAX ELF = ${ELVES[0]}"
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echo "sum(TOP $NUM_ELVES ELVES) = $(printf "%s\n" $(echo "${ELVES[*]}") | paste -sd+ - | bc)"
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