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用一条线连起所有的圆只能用横线和竖线不能重复
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○○○○○空隙大的两个不能连
人气:438 ℃ 时间:2020-03-28 08:08:14
解答
为了方便理解 将圆圈编号:A1←A2←A3←A4←A5(←从这开始)↓````````````````B1←B2←B3←B4↓````````````````↑C1→C2→C3→C4→C5```````````````````↑`````↓D1→D2→D3→D4``D5↑`````````...
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