{"componentChunkName":"component---src-templates-blog-post-js","path":"/Algorithm/BOJ-10868-Python/","result":{"data":{"site":{"siteMetadata":{"title":"hyesungoh","author":"hyesungoh","siteUrl":"https://www.hyesungoh.xyz","comment":{"disqusShortName":"","utterances":"hyesungoh/blog"},"sponsor":{"buyMeACoffeeId":""}}},"markdownRemark":{"id":"204aa4dc-177f-56b5-8b4d-3b3231a7eb2f","excerpt":"n개의 수가 주어진 후 정수 s, e가 주어진다. 입력된 수들의 인덱스 s부터 e까지 최솟값을 출력하는 문제. 위 문제와 같은 세그먼트 트리 방식을 이용하여 풀었으며 재귀적으로 반환 하는 값의 연산을 min 함수를 이용하여 풀었다.","html":"<p>n개의 수가 주어진 후 정수 s, e가 주어진다. 입력된 수들의 인덱스 s부터 e까지 최솟값을 출력하는 문제. 위 문제와 같은 세그먼트 트리 방식을 이용하여 풀었으며 재귀적으로 반환 하는 값의 연산을 min 함수를 이용하여 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\nINF <span class=\"token operator\">=</span> sys<span class=\"token punctuation\">.</span>maxsize\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\n<span class=\"token keyword\">def</span> <span class=\"token function\">init</span><span class=\"token punctuation\">(</span>node<span class=\"token punctuation\">,</span> start<span class=\"token punctuation\">,</span> end<span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    <span class=\"token keyword\">if</span> start <span class=\"token operator\">==</span> end<span class=\"token punctuation\">:</span>\n        tree<span class=\"token punctuation\">[</span>node<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> l<span class=\"token punctuation\">[</span>start<span class=\"token punctuation\">]</span>\n    <span class=\"token keyword\">else</span><span class=\"token punctuation\">:</span>\n        mid <span class=\"token operator\">=</span> <span class=\"token punctuation\">(</span>start <span class=\"token operator\">+</span> end<span class=\"token punctuation\">)</span> <span class=\"token operator\">//</span> <span class=\"token number\">2</span>\n        tree<span class=\"token punctuation\">[</span>node<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> <span class=\"token builtin\">min</span><span class=\"token punctuation\">(</span>init<span class=\"token punctuation\">(</span>node<span class=\"token operator\">*</span><span class=\"token number\">2</span><span class=\"token punctuation\">,</span> start<span class=\"token punctuation\">,</span> mid<span class=\"token punctuation\">)</span><span class=\"token punctuation\">,</span> init<span class=\"token punctuation\">(</span>node<span class=\"token operator\">*</span><span class=\"token number\">2</span><span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> mid<span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> end<span class=\"token punctuation\">)</span><span class=\"token punctuation\">)</span>\n    <span class=\"token keyword\">return</span> tree<span class=\"token punctuation\">[</span>node<span class=\"token punctuation\">]</span>\n\n<span class=\"token keyword\">def</span> <span class=\"token function\">query</span><span class=\"token punctuation\">(</span>node<span class=\"token punctuation\">,</span> start<span class=\"token punctuation\">,</span> end<span class=\"token punctuation\">,</span> left<span class=\"token punctuation\">,</span> right<span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    <span class=\"token keyword\">if</span> left <span class=\"token operator\">></span> end <span class=\"token keyword\">or</span> right <span class=\"token operator\">&lt;</span> start<span class=\"token punctuation\">:</span>\n        <span class=\"token keyword\">return</span> INF\n    <span class=\"token keyword\">if</span> left <span class=\"token operator\">&lt;=</span> start <span class=\"token keyword\">and</span> right <span class=\"token operator\">>=</span> end<span class=\"token punctuation\">:</span>\n        <span class=\"token keyword\">return</span> tree<span class=\"token punctuation\">[</span>node<span class=\"token punctuation\">]</span>\n\n    mid <span class=\"token operator\">=</span> <span class=\"token punctuation\">(</span>start <span class=\"token operator\">+</span> end<span class=\"token punctuation\">)</span> <span class=\"token operator\">//</span> <span class=\"token number\">2</span>\n    <span class=\"token keyword\">return</span> <span class=\"token builtin\">min</span><span class=\"token punctuation\">(</span>query<span class=\"token punctuation\">(</span>node<span class=\"token operator\">*</span><span class=\"token number\">2</span><span class=\"token punctuation\">,</span> start<span class=\"token punctuation\">,</span> mid<span class=\"token punctuation\">,</span> left<span class=\"token punctuation\">,</span> right<span class=\"token punctuation\">)</span><span class=\"token punctuation\">,</span> query<span class=\"token punctuation\">(</span>node<span class=\"token operator\">*</span><span class=\"token number\">2</span><span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> mid<span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> end<span class=\"token punctuation\">,</span> left<span class=\"token punctuation\">,</span> right<span class=\"token punctuation\">)</span><span class=\"token punctuation\">)</span>\n\nn<span class=\"token punctuation\">,</span> m <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>\nl <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span><span class=\"token punctuation\">]</span>\ntree <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span>INF <span class=\"token keyword\">for</span> _ <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span><span class=\"token number\">333333</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 punctuation\">)</span><span class=\"token punctuation\">:</span>\n    l<span class=\"token punctuation\">.</span>append<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><span class=\"token punctuation\">)</span>\n\ninit<span class=\"token punctuation\">(</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> <span class=\"token number\">0</span><span class=\"token punctuation\">,</span> n<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span>\n\n<span class=\"token keyword\">for</span> _ <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span>m<span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    s<span class=\"token punctuation\">,</span> e <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\">print</span><span class=\"token punctuation\">(</span>query<span class=\"token punctuation\">(</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> <span class=\"token number\">0</span><span class=\"token punctuation\">,</span> n<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> s<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> e<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">)</span></code></pre></div>","frontmatter":{"title":"BOJ-10868 - Python","date":"January 05, 2021"}}},"pageContext":{"slug":"/Algorithm/BOJ-10868-Python/","previous":{"fields":{"slug":"/Algorithm/BOJ-6549-Python/"},"frontmatter":{"title":"BOJ-6549 - Python","category":"Algorithm","draft":false}},"next":{"fields":{"slug":"/Algorithm/BOJ-1725-Python/"},"frontmatter":{"title":"BOJ-1725 - Python","category":"Algorithm","draft":false}}}},"staticQueryHashes":["3128451518","3290666882"]}