对下面的阶B树依次执行下列操作画出各步操作的结果【合肥工业大学 四 (分)】
()插入 () 插入 () 插入 ()删除 ()删除
已知棵 B树如下(省略外结点)【吉林大学 一 (分)】
对树(a)请分别画出先后插入两个新结点后的树形;
对树(b)请分别画出先后删除两个结点后的树形
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