programming linked-list stack leetcode cpp graph arrays leetcode-solutions hacktoberfest stacks arts dsa leetocde hacktoberfest2020 Updated Jun 2, 2025 itsPansez / Leetcode Star 0 Code Issues Pull requests
sources.append(vertex_info) # Sort the graph # self.sortGraph() def sortGraph(self) -> list: """ # Sort the graph based on the in-degree and complete graph info :return: the sorted graph """ # Pop the vertices in sources one by one to the sorted_graph. For each pop, find ...
To complete one operation, follow these steps: 1. Find the largest value in nums. Let its index be i (0-indexed) and its value be largest. If there are multiple elements with the largest value, pick the smallest i. 1. Find the next largest value in nums strictly smaller than largest...
说明complete tree的最低level出现了。自此以后,queue再不该有node再有child, queue后面出现的node的左右孩子应该都是null. 40. Construct Binary Tree from Inorder and Postorder Traversal.java Level: Medium 写个Inorder和Postorder的例子。利用他们分left/right subtree的规律解题。 Postorder array 的末尾, 就是...
Count Servers that Communicate.java Medium [Array, Graph] O(mn) O(m + n) Java 479 20 20. Valid Parentheses.java Easy [Stack, String] O(n) O(n) Java 480 893 893. Groups of Special-Equivalent Strings.java Easy [Basic Implementation, String] Java 481 427 427. Construct Quad Tree....
The size of a maximum flow in the resulting graph equals the size of a maximum matching in the original graph. Size of a minimum node cover always equals the size of a maximum matching. The complement of a maximum independent set is a minimum vertex cover(MAX Flow). Reference : https:...
如果已经知道这个Binary Tree的size为T, 怎么估计输出链表size? 答案是 2*T+1, (假设tree perfect and complete, leaf node层有大概一半的node数,比之前所有层的node数之和还要多一,那么,最后一层node每个再派生两个“#”, 个数就会有T+1个,所以总共有2*T+1个)...
Directed Graph Implementation - Adjacency ListDirected Graph Implementation - Adjacency MatrixUndirected Graph Implementation - Adjacency ListUndirected Graph Implementation - Adjacency MatrixDepth First Search (DFS) - OPTIONALDepth First Search (DFS)DFS implementationBreadth First Search (BFS) - OPTIONAL...
如果已经知道这个Binary Tree的size为T, 怎么估计输出链表size? 答案是 2*T+1, (假设tree perfect and complete, leaf node层有大概一半的node数,比之前所有层的node数之和还要多一,那么,最后一层node每个再派生两个“#”, 个数就会有T+1个,所以总共有2*T+1个)...
It is easy to see that the last two pointers are from the two ends of the longest path in the graph. The actual implementation is similar to the BFS topological sort. Remove the leaves, update the degrees of inner vertexes. Then remove the new leaves. Doing so level by level until the...