Oblongs and Right Triangles 判斷矩形 直角三角形

問題 B: Oblongs and Right Triangles 時間限制: 1 Sec  內存限制: 128 MB 提交: 31  解決: 4 [提交] [狀態] [討論版] [命題人:admin] 題目描述 There are N points on the plane; the i-th point is at (Xi, Yi). There may be multiple points

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