{"componentChunkName":"component---src-templates-blog-post-js","path":"/Algorithm/BOJ-11725-Python/","result":{"data":{"site":{"siteMetadata":{"title":"hyesungoh","author":"hyesungoh","siteUrl":"https://www.hyesungoh.xyz","comment":{"disqusShortName":"","utterances":"hyesungoh/blog"},"sponsor":{"buyMeACoffeeId":""}}},"markdownRemark":{"id":"3d1bbeef-8c43-51f5-980d-aae16c501a55","excerpt":"그래프의 루트가 1일 때 n개의 노드들을 입력받은 후 2번째 노드부터 부모 노드를 출력하는 문제. n의 길이만큼 0으로 이루어진 리스트를 만든 후 노드를 쌍방향으로 저정한다. 자식 노드를 찾고 리스트의 해당 자식 노드 -1 인덱스의 값이 0일 때 현재 노드의 값을 저장하는 함수를 만들고 재귀적으로 호출한다. 리스트의 2번째 인자부터 출력하여 풀었다.","html":"<p>그래프의 루트가 1일 때 n개의 노드들을 입력받은 후 2번째 노드부터 부모 노드를 출력하는 문제. n의 길이만큼 0으로 이루어진 리스트를 만든 후 노드를 쌍방향으로 저정한다. 자식 노드를 찾고 리스트의 해당 자식 노드 -1 인덱스의 값이 0일 때 현재 노드의 값을 저장하는 함수를 만들고 재귀적으로 호출한다. 리스트의 2번째 인자부터 출력하여 풀었다.</p>\n<div class=\"gatsby-highlight\" data-language=\"python\"><pre class=\"language-python\"><code class=\"language-python\"><span class=\"token keyword\">import</span> sys\nsys<span class=\"token punctuation\">.</span>setrecursionlimit<span class=\"token punctuation\">(</span><span class=\"token number\">10</span><span class=\"token operator\">**</span><span class=\"token number\">9</span><span class=\"token punctuation\">)</span>\n<span class=\"token builtin\">input</span> <span class=\"token operator\">=</span> sys<span class=\"token punctuation\">.</span>stdin<span class=\"token punctuation\">.</span>readline\n\nn <span class=\"token operator\">=</span> <span class=\"token builtin\">int</span><span class=\"token punctuation\">(</span><span class=\"token builtin\">input</span><span class=\"token punctuation\">(</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">)</span>\nl <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span><span class=\"token number\">0</span> <span class=\"token keyword\">for</span> _ <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span>n<span class=\"token punctuation\">)</span><span class=\"token punctuation\">]</span>\ngraph <span class=\"token operator\">=</span> <span class=\"token punctuation\">{</span><span class=\"token punctuation\">}</span>\n<span class=\"token keyword\">for</span> _ <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span>n<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    x<span class=\"token punctuation\">,</span> y <span class=\"token operator\">=</span> <span class=\"token builtin\">map</span><span class=\"token punctuation\">(</span><span class=\"token builtin\">int</span><span class=\"token punctuation\">,</span> <span class=\"token builtin\">input</span><span class=\"token punctuation\">(</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">.</span>split<span class=\"token punctuation\">(</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">)</span>\n    <span class=\"token keyword\">if</span> x <span class=\"token keyword\">in</span> graph<span class=\"token punctuation\">:</span>\n        graph<span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span><span class=\"token punctuation\">.</span>append<span class=\"token punctuation\">(</span>y<span class=\"token punctuation\">)</span>\n    <span class=\"token keyword\">else</span><span class=\"token punctuation\">:</span>\n        graph<span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span>y<span class=\"token punctuation\">]</span>\n    <span class=\"token keyword\">if</span> y <span class=\"token keyword\">in</span> graph<span class=\"token punctuation\">:</span>\n        graph<span class=\"token punctuation\">[</span>y<span class=\"token punctuation\">]</span><span class=\"token punctuation\">.</span>append<span class=\"token punctuation\">(</span>x<span class=\"token punctuation\">)</span>\n    <span class=\"token keyword\">else</span><span class=\"token punctuation\">:</span>\n        graph<span class=\"token punctuation\">[</span>y<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span>\n\n<span class=\"token keyword\">def</span> <span class=\"token function\">fp</span><span class=\"token punctuation\">(</span>n<span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    <span class=\"token keyword\">for</span> i <span class=\"token keyword\">in</span> graph<span class=\"token punctuation\">[</span>n<span class=\"token punctuation\">]</span><span class=\"token punctuation\">:</span>\n        <span class=\"token keyword\">if</span> l<span class=\"token punctuation\">[</span>i <span class=\"token operator\">-</span> <span class=\"token number\">1</span><span class=\"token punctuation\">]</span> <span class=\"token operator\">==</span> <span class=\"token number\">0</span><span class=\"token punctuation\">:</span>\n            l<span class=\"token punctuation\">[</span>i <span class=\"token operator\">-</span> <span class=\"token number\">1</span><span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> n\n            fp<span class=\"token punctuation\">(</span>i<span class=\"token punctuation\">)</span>\nfp<span class=\"token punctuation\">(</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span>\n<span class=\"token punctuation\">[</span><span class=\"token keyword\">print</span><span class=\"token punctuation\">(</span>i<span class=\"token punctuation\">)</span> <span class=\"token keyword\">for</span> i <span class=\"token keyword\">in</span> l<span class=\"token punctuation\">[</span><span class=\"token number\">1</span><span class=\"token punctuation\">:</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">]</span></code></pre></div>","frontmatter":{"title":"BOJ-11725 - Python","date":"October 22, 2020"}}},"pageContext":{"slug":"/Algorithm/BOJ-11725-Python/","previous":{"fields":{"slug":"/Algorithm/BOJ-1225-Python/"},"frontmatter":{"title":"BOJ-1225 - Python","category":"Algorithm","draft":false}},"next":{"fields":{"slug":"/Algorithm/BOJ-13549-Python/"},"frontmatter":{"title":"BOJ-13549 - Python","category":"Algorithm","draft":false}}}},"staticQueryHashes":["3128451518","3290666882"]}