Given a string containing just the characters '(', ')', '{', '}', '[' an...

Reverse a singly linked list. 這道題有Recursive和Iterative兩種解法，這里先寫Recursive的...

Merge two sorted (ascending) linked lists and return it as a new sorted ...

Description Given a linked list, remove the nthnode from the end of list...

Description For a given source string and a target string, you should ou...