18 下圖為何種資料結構? (A)完滿二元樹(Full Binary Tree) (B) AVL 樹(AVL Tree) (C)紅黑樹(Red-Black Tree) (D)最小堆積(MinHeap)
若母節點的值恆小於等於子節點的值,此堆積稱為最小堆積(min heap)