sumim https://blog.hatena.ne.jp/sumim/ Smalltalkのtは小文字です https://sumim.hatenablog.com/ Squeak Smalltalk ループを排除して、心持ち、すっきりとさせてみました。心持ち。ｗ SequenceableCollection >> combinations: digits atATimeAt: target | size sum ranges cursor digit | size _ self size. (size = target]. sum _ cursor > 1 ifTrue: [ranges at: cursor - 1] ifFalse: [0]. digit _ self species with: (self at: cursor). ^ digit, ((self allButFirs… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsumim.hatenablog.com%2Fentry%2F20041207%2Fp3" title=" 続： n 番目の組み合わせ - Smalltalkのtは小文字です" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2004-12-07 00:00:02 rich https://sumim.hatenablog.com/entry/20041207/p3 1.0 100%