Note: Do display output of a running program Suppose we have a doubly linked list: 3, 1,
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Do display output of a running program
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Suppose we have a doubly linked list: 3, 1, 8, 5, 4, 2, 9, 6, 7, 0. Write a routine that swaps any two nodes in the list, resetting their forward and back pointers as needed. You should of course check that nodes a and b are in the list (however you like) and then exchange them in the list if both are present. Notice that the head pointer may change as a result of this operation. And remember to pay attention to the special cases, like: a and b are separated by one node in the list, a and b are adjacent to each other in the list, a or b is the head or the tail of the list. void swap(const node*& head_ptr, node*&a, node *& b) // up to you Suppose we have a doubly linked list: 3, 1, 8, 5, 4, 2, 9, 6, 7, 0. Write a routine that swaps any two nodes in the list, resetting their forward and back pointers as needed. You should of course check that nodes a and b are in the list (however you like) and then exchange them in the list if both are present. Notice that the head pointer may change as a result of this operation. And remember to pay attention to the special cases, like: a and b are separated by one node in the list, a and b are adjacent to each other in the list, a or b is the head or the tail of the list. void swap(const node*& head_ptr, node*&a, node *& b) // up to you
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