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  <author_name>rokugats</author_name>
  <author_url>https://blog.hatena.ne.jp/rokugats/</author_url>
  <blog_title>ICPC log</blog_title>
  <blog_url>https://rokugats-pc.hateblo.jp/</blog_url>
  <categories>
    <anon>DPとグラフ</anon>
    <anon>最小費用流</anon>
    <anon>蟻本</anon>
    <anon>フロー</anon>
    <anon>POJ</anon>
  </categories>
  <description>蟻本の例題。負のコストの辺が存在する最小費用流問題。線形計画問題の深遠さとC++の闇を感じた例題。解説は蟻本参照。以下写経。 #include&lt;cstdio&gt; #include&lt;vector&gt; #include&lt;algorithm&gt; #define MAX_V 500 #define MAX_N 205 #define INF 1000000000 using namespace std; struct edge{ int to, cap, cost, rev_index; }; int N, K; int a[MAX_N], b[MAX_N], w[MAX_N]; int V; vector…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2014-02-23 07:41:56</published>
  <title>PKU POJ 3680 Intervals</title>
  <type>rich</type>
  <url>https://rokugats-pc.hateblo.jp/entry/2014/02/23/074156</url>
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