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Reserve linked list not implementation `func (l *SingleLinked) Reserve(p *SingleNode) *SingleNode { return nil }`

zengchanghuan

https://github.com/yezihack/algo/blob/9e46547089d058677853513ae04e32a5fb5c55cf/tree/binary_tree.go#L47 比如传入“#B#A#C#”，中序遍历生成树的时候，首字符是“#”，直接return,树不会生成

2686685661

for i := 0; i < len(arr); i ++ { ..... } ---> for i := 0; i < len(arr) - 1; i ++ { ..... }

iceriverdog