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  <description>しいだよー 久々にABCに参加したのでそのまとめ 結果はABCD(3)E5完で水色パフォの1338 レート上がると嬉しい https://atcoder.jp/contests/abc181 A - Heavy Rotation 偶奇判別 n = int(input()) if (n%2==0): print('White') else: print('Black') B - Trapezoid Sum 等差数列の和の公式をループ回す 最初書いた数字の個数と読み間違えたけど。。 n = int(input()) ans = 0 for i in range(n): a,b= map(int,i…</description>
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  <published>2020-11-02 11:19:56</published>
  <title>ABC 181　ざくざくまとめ</title>
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