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  <author_name>hamayanhamayan</author_name>
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  <blog_title>はまやんはまやんはまやん</blog_title>
  <blog_url>https://blog.hamayanhamayan.com/</blog_url>
  <categories>
    <anon>競技プログラミング</anon>
  </categories>
  <description>https://atcoder.jp/contests/abc116/tasks/abc116_a 解説 https://atcoder.jp/contests/abc116/submissions/4056750∠ABC=90°なので、斜辺でないのはABとBCになる。 なので、AB*BC/2が答え。 int ab, bc, ca; //--------------------------------------------------------------------------------------------------- void _main() { cin &gt;&gt; ab &gt;&gt; bc…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2019-01-20 23:26:58</published>
  <title>Right Triangle [AtCoder Beginner Contest 116 A]</title>
  <type>rich</type>
  <url>https://blog.hamayanhamayan.com/entry/2019/01/20/232658</url>
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