{"componentChunkName":"component---src-templates-blog-post-js","path":"/Algorithm/BOJ-9251-Python/","result":{"data":{"site":{"siteMetadata":{"title":"hyesungoh","author":"hyesungoh","siteUrl":"https://www.hyesungoh.xyz","comment":{"disqusShortName":"","utterances":"hyesungoh/blog"},"sponsor":{"buyMeACoffeeId":""}}},"markdownRemark":{"id":"7b7c39e3-9ade-533f-803a-aa8e524b773e","excerpt":"두 문자열을 입력받은 후 최장 공통 부분 수열의 길이를 출력하는 문제. 다이내믹 프로그래밍 방법을 이용하여 풀었다. 현재 문자가 동일 시에 현재 문자가 포함되지 않은 최장 공통 부분 수열의 길이 + 1, 포함되지 않을 시 현재 문자가 포함하지 않은 y문자, x문자의 값 중 큰 것을 배정, 배열의 마지막 값을 출력하여 풀었다.","html":"<p>두 문자열을 입력받은 후 최장 공통 부분 수열의 길이를 출력하는 문제. 다이내믹 프로그래밍 방법을 이용하여 풀었다. 현재 문자가 동일 시에 현재 문자가 포함되지 않은 최장 공통 부분 수열의 길이 + 1, 포함되지 않을 시 현재 문자가 포함하지 않은 y문자, x문자의 값 중 큰 것을 배정, 배열의 마지막 값을 출력하여 풀었다.</p>\n<div class=\"gatsby-highlight\" data-language=\"python\"><pre class=\"language-python\"><code class=\"language-python\">s1 <span class=\"token operator\">=</span> <span class=\"token builtin\">input</span><span class=\"token punctuation\">(</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">;</span> l1 <span class=\"token operator\">=</span> <span class=\"token builtin\">len</span><span class=\"token punctuation\">(</span>s1<span class=\"token punctuation\">)</span>\ns2 <span class=\"token operator\">=</span> <span class=\"token builtin\">input</span><span class=\"token punctuation\">(</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">;</span> l2 <span class=\"token operator\">=</span> <span class=\"token builtin\">len</span><span class=\"token punctuation\">(</span>s2<span class=\"token punctuation\">)</span>\ndp <span class=\"token operator\">=</span> <span class=\"token punctuation\">[</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>l2<span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">]</span> <span class=\"token keyword\">for</span> _ <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span>l1<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\">for</span> y <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> l1<span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n    <span class=\"token keyword\">for</span> x <span class=\"token keyword\">in</span> <span class=\"token builtin\">range</span><span class=\"token punctuation\">(</span><span class=\"token number\">1</span><span class=\"token punctuation\">,</span> l2<span class=\"token operator\">+</span><span class=\"token number\">1</span><span class=\"token punctuation\">)</span><span class=\"token punctuation\">:</span>\n        <span class=\"token comment\"># dp[y][x] = dp[y-1][x-1] + 1 if s1[y-1] == s2[x-1] else max(dp[y-1][x], dp[y][x-1])</span>\n        <span class=\"token keyword\">if</span> s1<span class=\"token punctuation\">[</span>y<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span> <span class=\"token operator\">==</span> s2<span class=\"token punctuation\">[</span>x<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>y<span class=\"token punctuation\">]</span><span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> dp<span class=\"token punctuation\">[</span>y<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">[</span>x<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\">1</span>\n        <span class=\"token keyword\">else</span><span class=\"token punctuation\">:</span>\n            dp<span class=\"token punctuation\">[</span>y<span class=\"token punctuation\">]</span><span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span> <span class=\"token operator\">=</span> <span class=\"token builtin\">max</span><span class=\"token punctuation\">(</span>dp<span class=\"token punctuation\">[</span>y<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span><span class=\"token punctuation\">[</span>x<span class=\"token punctuation\">]</span><span class=\"token punctuation\">,</span> dp<span class=\"token punctuation\">[</span>y<span class=\"token punctuation\">]</span><span class=\"token punctuation\">[</span>x<span class=\"token operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</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 operator\">-</span><span class=\"token number\">1</span><span class=\"token punctuation\">]</span><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-9251 - Python","date":"November 03, 2020"}}},"pageContext":{"slug":"/Algorithm/BOJ-9251-Python/","previous":{"fields":{"slug":"/Algorithm/BOJ-1158-Python/"},"frontmatter":{"title":"BOJ-1158 - Python","category":"Algorithm","draft":false}},"next":{"fields":{"slug":"/Algorithm/BOJ-3020-Python/"},"frontmatter":{"title":"BOJ-3020 - Python","category":"Algorithm","draft":false}}}},"staticQueryHashes":["3128451518","3290666882"]}