Why do we use pointers, structures and all those things to make a tree and why not just use an array? Is that due to the limitations of array, or do using pointers etc. giving better performance than arrays?Why do we use pointers, structures and all thos
阅读背景：
为什么我们将树表示为由指针链接的单元格而不是将所有内容存储在平面数组中？
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