Branches - Amal #31
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CheezItMan
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Feb 23, 2020
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Nice work, you hit all the learning goals here. Well done. Take a look at my comments and let me know if you have questions. The methods you have written all work and you've demonstrated an understanding of how to implement a Linked List. Only a few such as find middle and insert ascending were not implemented. Well done.
| raise NotImplementedError | ||
| # method to return the max value in the linked list | ||
| # returns the data value and not the node | ||
| def find_max |
| raise NotImplementedError | ||
| # method to find if the linked list contains a node with specified value | ||
| # returns true if found, false otherwise | ||
| def search(value) |
| end | ||
| # method to add a new node with the specific data value in the linked list | ||
| # insert the new node at the beginning of the linked list | ||
| def add_first(value) |
| raise NotImplementedError | ||
| # method to return the min value in the linked list | ||
| # returns the data value and not the node | ||
| def find_min |
| def visit | ||
| raise NotImplementedError | ||
| # method that returns the length of the singly linked list | ||
| def length |
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| def find_middle_value | ||
| raise NotImplementedError | ||
| end |
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| length = 0 | ||
| until current.next.nil? | ||
| length += 1 | ||
| current = current.next |
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Why not use the existing length method?
| # returns the value in the first node | ||
| # returns nil if the list is empty | ||
| def get_first | ||
| return @head ? @head.data : nil |
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| # navigate to last node | ||
| # method that inserts a given value as a new last node in the linked list | ||
| def add_last(value) |
| current.next = @head # make the last node link to first node | ||
| # method that returns the value of the last node in the linked list | ||
| # returns nil if the linked list is empty | ||
| def get_last |
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