60 lines
2.3 KiB
Bash
Executable File
60 lines
2.3 KiB
Bash
Executable File
#!/bin/bash
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i_max=-1
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j_max=0
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locations=()
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marked_locations=()
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while read line; do
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if [ $i_max -lt 0 ]; then
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i_max=${#line}
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fi
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locations+=( $(sed 's/\([0-9]\)/\1 /g' <<< $line) )
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j_max=$((j_max+1))
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done
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for i in $(seq 0 $((i_max-1))); do
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for j in $(seq 0 $((j_max-1))); do
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marked_locations+=( 0 )
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done
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done
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for i in $(seq 0 $((i_max-1))); do
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for j in $(seq 0 $((j_max-1))); do
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curr_location=${locations[$((i+j*i_max))]}
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if [ $curr_location -ne 9 ]; then
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marked_locations[$((i+j*i_max))]=$((marked_locations[i+j*i_max]+1))
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curr_i=$i
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curr_j=$j
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curr_min=$curr_location
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min_found=0
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while [ $min_found -eq 0 ]; do
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if [ $curr_i -gt 0 ] && [ ${locations[$((curr_i-1+curr_j*i_max))]} -lt $curr_min ]; then
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marked_locations[$((curr_i-1+curr_j*i_max))]=$((marked_locations[curr_i+curr_j*i_max]+marked_locations[curr_i-1+curr_j*i_max]))
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marked_locations[$((curr_i+curr_j*i_max))]=0
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curr_min=${locations[$((curr_i-1+curr_j*i_max))]}
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curr_i=$((curr_i-1))
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elif [ $curr_j -gt 0 ] && [ ${locations[$((curr_i+(curr_j-1)*i_max))]} -lt $curr_min ]; then
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marked_locations[$((curr_i+(curr_j-1)*i_max))]=$((marked_locations[curr_i+curr_j*i_max]+marked_locations[curr_i+(curr_j-1)*i_max]))
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marked_locations[$((curr_i+curr_j*i_max))]=0
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curr_min=${locations[$((curr_i+(curr_j-1)*i_max))]}
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curr_j=$((curr_j-1))
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elif [ $curr_i -lt $((i_max-1)) ] && [ ${locations[$((curr_i+1+curr_j*i_max))]} -lt $curr_min ]; then
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marked_locations[$((curr_i+1+curr_j*i_max))]=$((marked_locations[curr_i+curr_j*i_max]+marked_locations[curr_i+1+curr_j*i_max]))
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marked_locations[$((curr_i+curr_j*i_max))]=0
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curr_min=${locations[$((curr_i+1+curr_j*i_max))]}
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curr_i=$((curr_i+1))
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elif [ $curr_j -lt $((j_max-1)) ] && [ ${locations[$((curr_i+(curr_j+1)*i_max))]} -lt $curr_min ]; then
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marked_locations[$((curr_i+(curr_j+1)*i_max))]=$((marked_locations[curr_i+curr_j*i_max]+marked_locations[curr_i+(curr_j+1)*i_max]))
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marked_locations[$((curr_i+curr_j*i_max))]=0
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curr_min=${locations[$((curr_i+(curr_j+1)*i_max))]}
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curr_j=$((curr_j+1))
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else
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min_found=1
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fi
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done
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fi
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done
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done
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sizes=( $(printf '%s\n' "${marked_locations[@]}" | sort -nr) )
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echo $((sizes[0]*sizes[1]*sizes[2]))
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