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	<title>EightQueenProblem/이창섭 - Revision history</title>
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	<updated>2026-05-14T11:09:32Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
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		<title>imported&gt;Unknown at 05:23, 7 February 2021</title>
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		<updated>2021-02-07T05:23:12Z</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;== 알고리즘 ==&lt;br /&gt;
* 임의의 한 점에 퀸을 놓고 그곳을 시발점으로 하여 공격할 대상이 없는 곳에 퀸을 놓아 퀸이 총 8개가 되면 출력하고 끝난다. 퀸이 8개가 되지 않으면 다시 임의의 점을 수정한다. 이 임의의 점은 모든 좌표를 돌며 정해진다.&lt;br /&gt;
** 공격할 대상이 있는 가는 퀸의 놓을 위치에서 가로세로 대각선 방향으로 7칸씩 다른 퀸의 존재여부를 검사하는 것이다.&lt;br /&gt;
** 배열의 넘어가서 검사하는 것을 막기위해 20 by 20 을 쓴다.&lt;br /&gt;
== 소스 원본 ==&lt;br /&gt;
 #include &amp;amp;lt;iostream&amp;amp;gt;&lt;br /&gt;
 using namespace std;&lt;br /&gt;
 &lt;br /&gt;
 int array[20][20] = {0,};&lt;br /&gt;
 &lt;br /&gt;
 bool exam(int r, int c);&lt;br /&gt;
 void output();&lt;br /&gt;
 bool count();&lt;br /&gt;
 &lt;br /&gt;
 int main()&lt;br /&gt;
 {&lt;br /&gt;
 	for (int r = 7; r &amp;amp;lt;= 14; r++)&lt;br /&gt;
 	{&lt;br /&gt;
 		for (int c = 7; c &amp;amp;lt;= 14; c++)&lt;br /&gt;
 		{&lt;br /&gt;
 			array[r][c] = 1;&lt;br /&gt;
 			for (int i = 7; i &amp;amp;lt;= 14; i++)&lt;br /&gt;
 			{&lt;br /&gt;
 				for (int j = 7; j &amp;amp;lt;= 14; j++)&lt;br /&gt;
 				{&lt;br /&gt;
 					if (exam(i, j))&lt;br /&gt;
 						array[i][j] = 1;&lt;br /&gt;
 				}&lt;br /&gt;
 			}&lt;br /&gt;
 			if (count())&lt;br /&gt;
 			{&lt;br /&gt;
 				output();&lt;br /&gt;
 				return 0;&lt;br /&gt;
 			}&lt;br /&gt;
 			else&lt;br /&gt;
 			{&lt;br /&gt;
 				for (int a = 0; a &amp;amp;lt;= 19; a++)&lt;br /&gt;
 					for (int b = 0; b &amp;amp;lt;= 19; b++)&lt;br /&gt;
 						array[a][b] = 0;&lt;br /&gt;
 			}&lt;br /&gt;
 		}&lt;br /&gt;
 	}&lt;br /&gt;
 	output();&lt;br /&gt;
 	return 0;&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 bool exam(int r, int c)&lt;br /&gt;
 {&lt;br /&gt;
 	for (int i = 0; i &amp;amp;lt;= 7; i++)&lt;br /&gt;
 	{&lt;br /&gt;
 		if (array[i+7][c] == 1 || array[r][i+7] == 1 || array[r+i][c+i] == 1 || array[r-i][c-i] == 1 || array[r-i][c+i] == 1 || array[r+i][c-i] == 1)&lt;br /&gt;
 			return false;&lt;br /&gt;
 	}&lt;br /&gt;
 	return true;&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 void output()&lt;br /&gt;
 {&lt;br /&gt;
 	for (int i = 0; i &amp;amp;lt;= 7; i++)&lt;br /&gt;
 	{&lt;br /&gt;
 		for (int j = 0; j &amp;amp;lt;= 7; j++)&lt;br /&gt;
 		{&lt;br /&gt;
 			cout &amp;amp;lt;&amp;amp;lt; array[i+7][j+7] &amp;amp;lt;&amp;amp;lt; &amp;quot; &amp;quot;;&lt;br /&gt;
 		}&lt;br /&gt;
 		cout &amp;amp;lt;&amp;amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
 	}&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 bool count()&lt;br /&gt;
 {&lt;br /&gt;
 	int counter = 0;&lt;br /&gt;
 	for (int i = 7; i &amp;amp;lt;= 14; i++)&lt;br /&gt;
 	{&lt;br /&gt;
 		for (int j = 7; j &amp;amp;lt;= 14; j++)&lt;br /&gt;
 		{&lt;br /&gt;
 			if (array[i][j] == 1)&lt;br /&gt;
 				counter++;&lt;br /&gt;
 		}&lt;br /&gt;
 	}&lt;br /&gt;
 	if (counter == 8)&lt;br /&gt;
 		return true;&lt;br /&gt;
 	else&lt;br /&gt;
 		return false;&lt;br /&gt;
 }&lt;br /&gt;
----&lt;br /&gt;
* 지금 보니 무시무시한 소스다... 5중 루프... -_-;; --[[창섭]]&lt;br /&gt;
----&lt;br /&gt;
[[EightQueenProblem]]&lt;br /&gt;
&lt;/div&gt;</summary>
		<author><name>imported&gt;Unknown</name></author>
	</entry>
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