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問題 43 に別解を 2 つ追加しました
Ruby と Perl でパラグラフモード(-00)を使ってみました。
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answer/43.md

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@@ -7,3 +7,12 @@ $ cat bunken.txt | awk 'NR%3==1{k=$1};{print k,$0}' | sort -s -k1,1 | sed 's/...
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別解1(田代) $ cat bunken.txt | tr '\n' '@' | sed 's/@@/@\n/g' | sort | tr '@' '\n'
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別解2(中村) $ cat bunken.txt | sed 's/\[/\x0&/g' | sort -z | tr -d '\0'
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```
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### 読者別解
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by [kariya-mitsuru](https://github.com/kariya-mitsuru)
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```
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別解3 $ ruby -00e 'puts $<.sort' bunken.txt
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別解4 $ perl -00e 'print sort <>' bunken.txt
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```

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