binary-tree

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 8 months ago . Question: Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the root. The length of path between two nodes is represented by the number of edges between them. source A solution to this is

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 8 months ago . Question: Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the root. The length of path between two nodes is represented by the number of edges between them. source A solution to this is

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 8 months ago . Question: Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the root. The length of path between two nodes is represented by the number of edges between them. source A solution to this is

问题 I am given a list of numbers, for example [22,45,2,6,7,...] . Now I have to insert binary operators: + , - , / , * and parentheses ( , ) between numbers so that expression is equal to given number k . List all possible expressions created by insertions of operators and parentheses that will give sum of k . Position of numbers in resulting expression have to be fixed, i.e. only insertion of operators and parentheses between or around numbers For example : given number k=9 and list [1,2,3] ,

问题 I am given a list of numbers, for example [22,45,2,6,7,...] . Now I have to insert binary operators: + , - , / , * and parentheses ( , ) between numbers so that expression is equal to given number k . List all possible expressions created by insertions of operators and parentheses that will give sum of k . Position of numbers in resulting expression have to be fixed, i.e. only insertion of operators and parentheses between or around numbers For example : given number k=9 and list [1,2,3] ,

问题 Suppose you already have the basic binary tree procedures isempty(bt), root(bt), left(bt), and right(bt). Write a procedure isLeaf(bt) that returns true if the binary tree bt is a leaf node and false if it is not. This is what I have: proc isLeaf(bt) if (isEmpty(bt)) error('The binary tree is empty.'); elseif (left(bt) < right(bt)) return true; else return false; Then write a procedure numLeaves(bt) that returns the number of leaves in the binary tree bt. This is what I have: proc numLeaves

问题 Suppose you already have the basic binary tree procedures isempty(bt), root(bt), left(bt), and right(bt). Write a procedure isLeaf(bt) that returns true if the binary tree bt is a leaf node and false if it is not. This is what I have: proc isLeaf(bt) if (isEmpty(bt)) error('The binary tree is empty.'); elseif (left(bt) < right(bt)) return true; else return false; Then write a procedure numLeaves(bt) that returns the number of leaves in the binary tree bt. This is what I have: proc numLeaves

问题 I wanted to draw a balanced binary search tree for numbers from 1 to 20. _______10_______ / \ ___5___ 15 / \ / \ 3 8 13 18 / \ / \ / \ / \ 2 4 7 9 12 14 17 19 / / / / 1 6 11 16 Is the above tree correct and balanced? 回答1: In answer to your original question as to whether or not you need to first calculate the height, no, you don't need to. You just have to understand that a balanced tree is one where the height difference between the tallest and shortest node is zero or one, and the simplest

问题 I wrote this and somehow it's ending up deleting all my left side on the tree not only the most left leaf. I can't find my mistake, can someone help? struct Node *delMin(struct Node **root) { struct Node *current = *root; struct Node *b4Current; while ((current->m_ls) == NULL) { b4Current = current; current = current->m_ls; } if ((current->m_rs) == NULL) { b4Current->m_ls = 0; free(current); } else { b4Current->m_ls = current->m_rs; free(current); } return *root; } 回答1: Let's look at your

问题 I wrote this and somehow it's ending up deleting all my left side on the tree not only the most left leaf. I can't find my mistake, can someone help? struct Node *delMin(struct Node **root) { struct Node *current = *root; struct Node *b4Current; while ((current->m_ls) == NULL) { b4Current = current; current = current->m_ls; } if ((current->m_rs) == NULL) { b4Current->m_ls = 0; free(current); } else { b4Current->m_ls = current->m_rs; free(current); } return *root; } 回答1: Let's look at your