#!/usr/bin/env bash

file="$1"

ones=(0 0 0 0 0 0 0 0 0 0 0 0)
lines=0
gamma=""
epsilon=""

while read line; do

	bitn=0
	while read bit; do
		if [ "$bit" -eq 1 ]; then
			ones[$bitn]=$((${ones[$bitn]} + 1))
		fi
		bitn=$(( bitn + 1 ))
	done < <(echo "$line" | grep -o .)

	lines="$((lines + 1))"

done < <(cat "$file")

echo "${ones[@]}"

for i in ${ones[@]}; do
	if [ "$i" -gt "$(( lines / 2 ))" ]; then
		gamma="${gamma}1"
		epsilon="${epsilon}0"
	else
		gamma="${gamma}0"
		epsilon="${epsilon}1"
	fi
done


gammaDecimal="$( echo "ibase=2; $gamma" | bc )"
epsilonDecimal="$( echo "ibase=2; $epsilon" | bc )"

echo "Gamma: $gamma -> $gammaDecimal"
echo "Epsilon: $epsilon -> $epsilonDecimal"

echo "Answer: $((gammaDecimal * epsilonDecimal))"