{"componentChunkName":"component---src-templates-blog-post-js","path":"/Algorithm/BOJ-2156-Python/","result":{"data":{"site":{"siteMetadata":{"title":"hyesungoh","author":"hyesungoh","siteUrl":"https://www.hyesungoh.xyz","comment":{"disqusShortName":"","utterances":"hyesungoh/blog"},"sponsor":{"buyMeACoffeeId":""}}},"markdownRemark":{"id":"a85fc19c-6dd7-5f84-9afc-9eefa5f5343b","excerpt":"n개의 수들이 입력되고 연속으로 3개의 수를 합칠 수 없는 조건이 있을 때, 수들을 합친 최대의 수를 출력하는 문제. 합한 값을 저장하는 dp, 입력되는 수를 저장하는 l을 이용하여 아래 점화식을 도출해 풀었다.","html":"<p>n개의 수들이 입력되고 연속으로 3개의 수를 합칠 수 없는 조건이 있을 때, 수들을 합친 최대의 수를 출력하는 문제. 합한 값을 저장하는 dp, 입력되는 수를 저장하는 l을 이용하여 아래 점화식을 도출해 풀었다.<code class=\"language-text\">pythonmax(l[i] + l[i-1] + dp[i-3], l[i] + dp[i-2], dp[i-1])</code></p>\n<div class=\"gatsby-highlight\" data-language=\"python\"><pre class=\"language-python\"><code class=\"language-python\"><span class=\"token keyword\">import</span> sys\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>\ndp <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</span><span class=\"token number\">0</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 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    t <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>\n    dp<span class=\"token punctuation\">.</span>append<span class=\"token punctuation\">(</span>t<span class=\"token punctuation\">)</span>\n    l<span class=\"token punctuation\">.</span>append<span class=\"token punctuation\">(</span>t<span class=\"token punctuation\">)</span>\n\n<span class=\"token keyword\">if</span> n <span class=\"token operator\">==</span> <span class=\"token number\">1</span><span class=\"token punctuation\">:</span>\n    <span class=\"token keyword\">print</span><span class=\"token punctuation\">(</span>dp<span class=\"token punctuation\">[</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">)</span>\n    exit<span class=\"token punctuation\">(</span><span class=\"token number\">0</span><span class=\"token punctuation\">)</span>\n\ndp<span class=\"token punctuation\">[</span><span class=\"token number\">2</span><span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> dp<span class=\"token punctuation\">[</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span> <span class=\"token operator\">+</span> dp<span class=\"token punctuation\">[</span><span class=\"token number\">2</span><span class=\"token punctuation\">]</span>\n<span class=\"token keyword\">for</span> i <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span><span class=\"token number\">3</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    dp<span class=\"token punctuation\">[</span>i<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> <span class=\"token builtin\">max</span><span class=\"token punctuation\">(</span>l<span class=\"token punctuation\">[</span>i<span class=\"token punctuation\">]</span> <span class=\"token operator\">+</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> dp<span class=\"token punctuation\">[</span>i<span class=\"token operator\">-</span><span class=\"token number\">3</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">,</span> l<span class=\"token punctuation\">[</span>i<span class=\"token punctuation\">]</span> <span class=\"token operator\">+</span> dp<span class=\"token punctuation\">[</span>i<span class=\"token operator\">-</span><span class=\"token number\">2</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">,</span> dp<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 punctuation\">)</span>\n\n<span class=\"token keyword\">print</span><span class=\"token punctuation\">(</span>dp<span class=\"token punctuation\">[</span><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-2156 - Python","date":"November 19, 2020"}}},"pageContext":{"slug":"/Algorithm/BOJ-2156-Python/","previous":{"fields":{"slug":"/Algorithm/BOJ-14501-Python/"},"frontmatter":{"title":"BOJ-14501 - Python","category":"Algorithm","draft":false}},"next":{"fields":{"slug":"/Algorithm/BOJ-1978-Python/"},"frontmatter":{"title":"BOJ-1978 - Python","category":"Algorithm","draft":false}}}},"staticQueryHashes":["3128451518","3290666882"]}