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| author | Abigail <abigail@abigail.be> | 2021-01-27 19:11:09 +0100 |
|---|---|---|
| committer | Abigail <abigail@abigail.be> | 2021-01-27 19:11:09 +0100 |
| commit | f1dbdec48c9b3d003f7f8eaaec4c6070be6652f6 (patch) | |
| tree | 593b075325a1a247d7843f3907a33dea18db5651 /challenge-097/abigail/bash | |
| parent | 46fdef8d9c84252e197f529b12987980e1cf6ff5 (diff) | |
| download | perlweeklychallenge-club-f1dbdec48c9b3d003f7f8eaaec4c6070be6652f6.tar.gz perlweeklychallenge-club-f1dbdec48c9b3d003f7f8eaaec4c6070be6652f6.tar.bz2 perlweeklychallenge-club-f1dbdec48c9b3d003f7f8eaaec4c6070be6652f6.zip | |
Bash and Ruby solutions for week 97, part 2
Diffstat (limited to 'challenge-097/abigail/bash')
| -rw-r--r-- | challenge-097/abigail/bash/ch-2.sh | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/challenge-097/abigail/bash/ch-2.sh b/challenge-097/abigail/bash/ch-2.sh new file mode 100644 index 0000000000..ad82b5ecab --- /dev/null +++ b/challenge-097/abigail/bash/ch-2.sh @@ -0,0 +1,45 @@ +#!/bin/sh + +# +# See ../README.md +# + +# +# Run as: bash ch-2.sh -s SECTIONS < input-file +# + +# +# Disable pathname expansion +# +set -f + +# +# Read the option +# +while getopts "s:" name +do if [ "$name" = "s" ] + then sections=$OPTARG + fi +done + + +# +# Iterate over the input. For each position, count the number of 0s, +# and calculate the number of 1s. Sum the minimum of those numbers. +# +while read line +do s_len=$((${#line} / $sections)) + sum=0 + for ((i = 0; i < s_len; i ++)) + do zeros=0 + for ((j = 0; j < sections; j ++)) + do index=$(($j * $s_len + $i)) + if [ "${line:$index:1}" == "0" ] + then zeros=$(($zeros + 1)) + fi + done + ones=$(($sections - $zeros)) + sum=$(($sum + ($zeros < $ones ? $zeros : $ones) )) + done + echo $sum +done |