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	<title>EditStepLadders/황재선 - Revision history</title>
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	<updated>2026-05-14T22:47:38Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://mediawiki.zeropage.org/index.php?title=EditStepLadders/%ED%99%A9%EC%9E%AC%EC%84%A0&amp;diff=84332&amp;oldid=prev</id>
		<title>Maintenance script: Repair batch-0002 pages from live compare</title>
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		<updated>2026-03-27T00:16:02Z</updated>

		<summary type="html">&lt;p&gt;Repair batch-0002 pages from live compare&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 00:16, 27 March 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 접근법 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 접근법 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 입력 단어에 대해 1~n번의 숫자 번호를 붙였다. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;행렬[[1&lt;/del&gt;...&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;n]][[1&lt;/del&gt;...&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;n]]에 &lt;/del&gt;편집 단계인 단어에 대해 값을 주어서 방향 그래프를 만들었다. 예를 들어, 1번과 2번 단어가 편집단어라면 mat&amp;amp;#91;1&amp;amp;#93;&amp;amp;#91;2&amp;amp;#93; = 1 아니면 0값을 주었다. 가장 depth가 긴 path에 있는 vertex의 개수를 출력하면 된다.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 입력 단어에 대해 1~n번의 숫자 번호를 붙였다. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;행렬1&lt;/ins&gt;...&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;n1&lt;/ins&gt;...&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;n에 &lt;/ins&gt;편집 단계인 단어에 대해 값을 주어서 방향 그래프를 만들었다. 예를 들어, 1번과 2번 단어가 편집단어라면 mat&amp;amp;#91;1&amp;amp;#93;&amp;amp;#91;2&amp;amp;#93; = 1 아니면 0값을 주었다. 가장 depth가 긴 path에 있는 vertex의 개수를 출력하면 된다.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 소스코드 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 소스코드 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private List&amp;amp;lt;String&amp;amp;gt; wordList;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private List&amp;amp;lt;String&amp;amp;gt; wordList;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private Stack&amp;amp;lt;Integer&amp;amp;gt; stack;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private Stack&amp;amp;lt;Integer&amp;amp;gt; stack;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[][] &lt;/del&gt;connection;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#91;&amp;amp;#93;&amp;amp;#91;&amp;amp;#93; &lt;/ins&gt;connection;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int startingPoint;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int startingPoint;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int longestPassedWordCount;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	private int longestPassedWordCount;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l41&quot;&gt;Line 41:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 41:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	public void makeAdjancencyMatrix() {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	public void makeAdjancencyMatrix() {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		int size = wordList.size();&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		int size = wordList.size();&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		connection = new int&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[&lt;/del&gt;size + 1&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;][&lt;/del&gt;size + 1&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]&lt;/del&gt;;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		connection = new int&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#91;&lt;/ins&gt;size + 1&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93;&amp;amp;#91;&lt;/ins&gt;size + 1&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93;&lt;/ins&gt;;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		for(int from = 1; from &amp;amp;lt;= size; from++) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		for(int from = 1; from &amp;amp;lt;= size; from++) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l48&quot;&gt;Line 48:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 48:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				String nextWord = wordList.get(to - 1);&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				String nextWord = wordList.get(to - 1);&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				if (isEditStep(word, nextWord)) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				if (isEditStep(word, nextWord)) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  					connection&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[&lt;/del&gt;from&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;][&lt;/del&gt;to&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;] &lt;/del&gt;= 1;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  					connection&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#91;&lt;/ins&gt;from&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93;&amp;amp;#91;&lt;/ins&gt;to&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93; &lt;/ins&gt;= 1;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  					if (startingPoint == 0) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  					if (startingPoint == 0) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  						startingPoint = from;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  						startingPoint = from;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l90&quot;&gt;Line 90:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 90:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		for(int to = from + 1; to &amp;amp;lt;= size; to++) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		for(int to = from + 1; to &amp;amp;lt;= size; to++) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  			if (connection&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[&lt;/del&gt;from&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;][&lt;/del&gt;to&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;] &lt;/del&gt;== 1) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  			if (connection&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#91;&lt;/ins&gt;from&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93;&amp;amp;#91;&lt;/ins&gt;to&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#93; &lt;/ins&gt;== 1) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				dfs(to);&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  				dfs(to);&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  			}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  			}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l107&quot;&gt;Line 107:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 107:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	public static void main(String&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[] &lt;/del&gt;args) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  	public static void main(String&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;amp;#91;&amp;amp;#93; &lt;/ins&gt;args) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		EditStepLadders step = new EditStepLadders();&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		EditStepLadders step = new EditStepLadders();&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		while(true) {&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  		while(true) {&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
	<entry>
		<id>https://mediawiki.zeropage.org/index.php?title=EditStepLadders/%ED%99%A9%EC%9E%AC%EC%84%A0&amp;diff=31485&amp;oldid=prev</id>
		<title>imported&gt;Unknown at 05:23, 7 February 2021</title>
		<link rel="alternate" type="text/html" href="https://mediawiki.zeropage.org/index.php?title=EditStepLadders/%ED%99%A9%EC%9E%AC%EC%84%A0&amp;diff=31485&amp;oldid=prev"/>
		<updated>2021-02-07T05:23:10Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;2006.1.12&lt;br /&gt;
&lt;br /&gt;
== 접근법 ==&lt;br /&gt;
* 입력 단어에 대해 1~n번의 숫자 번호를 붙였다. 행렬[[1...n]][[1...n]]에 편집 단계인 단어에 대해 값을 주어서 방향 그래프를 만들었다. 예를 들어, 1번과 2번 단어가 편집단어라면 mat&amp;amp;#91;1&amp;amp;#93;&amp;amp;#91;2&amp;amp;#93; = 1 아니면 0값을 주었다. 가장 depth가 긴 path에 있는 vertex의 개수를 출력하면 된다.&lt;br /&gt;
&lt;br /&gt;
== 소스코드 ==&lt;br /&gt;
 import java.util.ArrayList;&lt;br /&gt;
 import java.util.List;&lt;br /&gt;
 import java.util.Scanner;&lt;br /&gt;
 import java.util.Stack;&lt;br /&gt;
 &lt;br /&gt;
 public class EditStepLadders {&lt;br /&gt;
 	private List&amp;amp;lt;String&amp;amp;gt; wordList;&lt;br /&gt;
 	private Stack&amp;amp;lt;Integer&amp;amp;gt; stack;&lt;br /&gt;
 	private int[][] connection;&lt;br /&gt;
 	private int startingPoint;&lt;br /&gt;
 	private int longestPassedWordCount;&lt;br /&gt;
 	&lt;br /&gt;
 	public EditStepLadders() {&lt;br /&gt;
 		wordList = new ArrayList&amp;amp;lt;String&amp;amp;gt;();&lt;br /&gt;
 		stack = new Stack&amp;amp;lt;Integer&amp;amp;gt;();&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public String readWord() {&lt;br /&gt;
 		try {&lt;br /&gt;
 			return new Scanner(System.in).nextLine();	&lt;br /&gt;
 		}&lt;br /&gt;
 		catch (Exception e) {&lt;br /&gt;
 			return null;&lt;br /&gt;
 		}&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public void storeWord(String word) {&lt;br /&gt;
 		wordList.add(word);&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public boolean isExistWord() {&lt;br /&gt;
 		return !wordList.isEmpty();&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public void makeAdjancencyMatrix() {&lt;br /&gt;
 		int size = wordList.size();&lt;br /&gt;
 		connection = new int[size + 1][size + 1];&lt;br /&gt;
 &lt;br /&gt;
 		for(int from = 1; from &amp;amp;lt;= size; from++) {&lt;br /&gt;
 			String word = wordList.get(from - 1);			&lt;br /&gt;
 			for(int to = from + 1; to &amp;amp;lt;= size; to++) {&lt;br /&gt;
 				String nextWord = wordList.get(to - 1);&lt;br /&gt;
 				if (isEditStep(word, nextWord)) {&lt;br /&gt;
 					connection[from][to] = 1;&lt;br /&gt;
 					if (startingPoint == 0) {&lt;br /&gt;
 						startingPoint = from;&lt;br /&gt;
 					}&lt;br /&gt;
 				}&lt;br /&gt;
 			}&lt;br /&gt;
 		}&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public boolean isEditStep(String word1, String word2) {&lt;br /&gt;
 		int length1 = word1.length();&lt;br /&gt;
 		int length2 = word2.length();&lt;br /&gt;
 		&lt;br /&gt;
 		int lengthGap = Math.abs(length1 - length2); &lt;br /&gt;
 		if (lengthGap &amp;amp;lt; 0 || lengthGap &amp;amp;gt; 1) {&lt;br /&gt;
 			return false;&lt;br /&gt;
 		}&lt;br /&gt;
 		int minLength = Math.min(length1, length2);&lt;br /&gt;
 		&lt;br /&gt;
 		Scanner sc1 = new Scanner(word1).useDelimiter(&amp;quot;&amp;quot;);&lt;br /&gt;
 		Scanner sc2 = new Scanner(word2).useDelimiter(&amp;quot;&amp;quot;);&lt;br /&gt;
 		&lt;br /&gt;
 		int differentBit = 0;&lt;br /&gt;
 		for(int i = 0; i &amp;amp;lt; minLength; i++) {&lt;br /&gt;
 			if (!sc1.next().equals(sc2.next())) {&lt;br /&gt;
 				differentBit++;&lt;br /&gt;
 			}&lt;br /&gt;
 		}&lt;br /&gt;
 		&lt;br /&gt;
 		if (lengthGap == 0) {&lt;br /&gt;
 			return differentBit == 1 ? true : false;	&lt;br /&gt;
 		}&lt;br /&gt;
 		else {&lt;br /&gt;
 			return differentBit == 0 ? true : false;&lt;br /&gt;
 		}	&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public void dfs(int from) {&lt;br /&gt;
 		int size = wordList.size();&lt;br /&gt;
 		stack.add(from);&lt;br /&gt;
 		&lt;br /&gt;
 		for(int to = from + 1; to &amp;amp;lt;= size; to++) {&lt;br /&gt;
 			if (connection[from][to] == 1) {&lt;br /&gt;
 				dfs(to);&lt;br /&gt;
 			}&lt;br /&gt;
 		}&lt;br /&gt;
 		&lt;br /&gt;
 		longestPassedWordCount = Math.max(longestPassedWordCount, stack.size());&lt;br /&gt;
 		stack.pop();		&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public int getStartingPoint() {&lt;br /&gt;
 		return startingPoint;&lt;br /&gt;
 	}&lt;br /&gt;
 	&lt;br /&gt;
 	public void printResult() {&lt;br /&gt;
 		System.out.println(longestPassedWordCount);&lt;br /&gt;
 	}&lt;br /&gt;
 &lt;br /&gt;
 	public static void main(String[] args) {&lt;br /&gt;
 		EditStepLadders step = new EditStepLadders();&lt;br /&gt;
 		while(true) {&lt;br /&gt;
 			String word = step.readWord();&lt;br /&gt;
 			if (word == null || word.equals(&amp;quot;&amp;quot;)) {&lt;br /&gt;
 				break;&lt;br /&gt;
 			}&lt;br /&gt;
 			step.storeWord(word);&lt;br /&gt;
 		}&lt;br /&gt;
 		&lt;br /&gt;
 		if (step.isExistWord()) {&lt;br /&gt;
 			step.makeAdjancencyMatrix();&lt;br /&gt;
 			step.dfs(step.getStartingPoint());&lt;br /&gt;
 			step.printResult();&lt;br /&gt;
 		}&lt;br /&gt;
 	}&lt;br /&gt;
 }&lt;br /&gt;
----&lt;br /&gt;
[[EditStepLadders]]&lt;/div&gt;</summary>
		<author><name>imported&gt;Unknown</name></author>
	</entry>
</feed>