[幾何] 請問下圖那裡出問題了?
下圖:
http://news.nate.com/View/20110531n22643&mid=n0607&cid=270058
這是數學圖論問題,
明明每個子圖都一樣,為什麼換一個位子之後,
就多了一格呢???
有大大看出問題了嗎???
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