[理工] 台大電機105 離散圖論
請問這題我是這麼想的:
因為degree數越少則leaf也會越少
所以degree為2的的樹leaf一定是最少的
且degree為2的樹leaf為
l <= n/2 + 1/2
那麼degree數不為2的leaf一定不會比degree數為2的leaf來得少
所以是l >= n/2 +1
不知道觀念是不是有錯 覺得怪怪的
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