While many of you have touched upon major adv./dis of linked list vs array, most of the comparisons are how one is better/ worse than the other.Eg. you can do random access in array but not possible in linked list and others. However, this is assuming link lists and array are going to be applied in a similar application. However a correct answer should be how link list would be preferred over array and vice-versa in a particular application deployment. Suppose you want to implement a dictionary application, what would you use ? Array : mmm it would allow easy retrieval through binary search and other search algo .. but lets think how link list can be better..Say you want to search "Blob" in dictionary. Would it make sense to have a link list of A->B->C->D---->Z and then each list element also pointing to an array or another list of all words starting with that letter ..

A -> B -> C -> ...Z
|    |    |
|    |    [Cat, Cave]
|    [Banana, Blob]
[Adam, Apple]

Now is the above approach better or a flat array of [Adam,Apple,Banana,Blob,Cat,Cave] ? Would it even be possible with array ? So a major advantage of link list is you can have an element not just pointing to the next element but also to some other link list/array/ heap/ or any other memory location. Array is a one flat contigous memory sliced into blocks size of the element it is going to store.. Link list on the other hand is a chunks of non-contigous memory units (can be any size and can store anything) and pointing to each other the way you want. Similarly lets say you are making a USB drive. Now would you like files to be saved as any array or as a link list ? I think you get the idea what I am pointing to :)

数组和链表之间的区别在于，数组是基于索引的数据结构，每个元素都与一个索引相关联，而链表是使用引用的数据结构，每个节点都被引用到另一个节点。在数组大小是固定的，而在链表大小是不固定的。

使用链表的唯一原因是插入元素很容易(删除也很容易)。

缺点可能是指针占用大量空间。

关于编码就更难了: 通常你不需要代码链表(或只需要一次)他们包括在内 STL 如果你还是要做的话，它就不那么复杂了。

两件事:

毫无疑问，编写链表比使用数组要多一些工作，他想知道如何才能证明这些额外的工作是合理的。

使用c++时不要编写链表。使用STL即可。实现的难度不应该成为选择一种数据结构而不是另一种数据结构的理由，因为大多数数据结构都已经实现了。

至于数组和链表之间的实际区别，对我来说最重要的是你计划如何使用这种结构。我将使用术语向量，因为这是c++中可调整大小的数组的术语。

对链表进行索引很慢，因为必须遍历链表才能找到给定的索引，而向量在内存中是连续的，可以使用指针数学方法到达那里。

添加到链表的末尾或开头是很容易的，因为你只需要更新一个链接，而在向量中，你可能需要调整大小并复制内容。

从列表中删除一个项目很容易，因为您只需要断开一对链接，然后将它们重新连接在一起。从向量中移除一个项目可以更快也可以更慢，这取决于您是否关心顺序。在你想要删除的项目上面交换最后一项更快，而移动它之后的所有内容较慢，但保持顺序。

Arrays make sense where the exact number of items will be known, and where searching by index makes sense. For example, if I wanted to store the exact state of my video output at a given moment without compression I would probably use an array of size [1024][768]. This will provide me with exactly what I need, and a list would be much, much slower to get the value of a given pixel. In places where an array does not make sense there are generally better data types than a list to deal with data effectively.

除了插入到列表中间更容易之外——从链表中间删除也比从数组中删除容易得多。

但坦率地说，我从未使用过链表。每当我需要快速插入和删除时，我也需要快速查找，所以我使用HashSet或Dictionary。