Where can i find a good tutorial for linked list,binary trees

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The discussion revolves around a code snippet that includes arrows, which are likely pointers to structures in C++. The user expresses confusion about the meaning of these arrows in the context of linked lists. A suggestion is made to refer to a specific tutorial on C++ that explains pointers to structures, particularly in the section titled 'Pointers to structures.' This resource is intended to clarify the user's understanding of how pointers work in relation to linked lists.
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i got this code

http://img66.imageshack.us/my.php?image=93367399de7.gif

i know linked lists a little
but in this code there are some arrows i can't understand
what is their meaning??

is there any tutorial for these arrows thing?
 
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http://www.cplusplus.com/doc/tutorial/structures.html

Scroll down to the section titled 'Pointers to structures'.
 
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