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

Reverse a singly linked list. 这道题有Recursive和Iterative两种解法，这里先写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...