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  <author_name>inamori</author_name>
  <author_url>https://blog.hatena.ne.jp/inamori/</author_url>
  <blog_title>inamori’s diary</blog_title>
  <blog_url>https://inamori.hateblo.jp/</blog_url>
  <categories>
    <anon>Julia</anon>
  </categories>
  <description>Problem 42 https://projecteuler.net/problem=42 function read_names(path) open(path, &quot;r&quot;) do fp for line in eachline(fp) return [ s[2:length(s)-1] for s in split(line, &quot;,&quot;) ] end end end function is_square(n) return Int(floor(sqrt(n)))^2 == n end function is_triangle(n) # x^2 + x = 2n # x = (-1 + sqr…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2019-08-05 09:53:32</published>
  <title>JuliaでProject Euler(22)</title>
  <type>rich</type>
  <url>https://inamori.hateblo.jp/entry/2019/08/05/095332</url>
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