- Iterative 稍微难想点：先把最左边的add， pop() stack， 加上右边（如果存在）； 下一个轮回，如果又左孩子，又是一顿加。 What if the BST is modified (insert/delete operations) often and you need to find the kth ...
public class ArrayInsertion { public static void main(String[] args) { int[] originalArray = {1, 2, 3, 4, 5}; int elementToInsert = 99; int indexToInsert = 2; int ...
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