Data Structure and Algorithms | 2020-03-31 Leetcode 109. Convert Sorted List to Binary Search Tree Question Given an ascending linked list and generate a balanced binary search ...
Java | 2020-03-29 Java Static code block Static code block: declared with staitc, executed when the jvm loads the class, only onceConstructin ...
Data Structure and Algorithms | 2020-03-25 Leetcode 105. Construct Binary Tree from Preorder and Inorder Traversal Question Restored binary tree according to the pre-order and in-order traversal. Similar Question ...
Spring Cloud | 2020-03-22 Spring Cloud 13: Security Security is a fundamental feature that cannot be bypassed in almost any application development. As ...
Data Structure and Algorithms | 2020-03-20 Leetcode 89. Gray Code Question Generate n-bit Gray codes. The so-called Gray codes are two consecutive numbers with onl ...
Data Structure and Algorithms | 2020-03-18 Backtracking Algorithm ConceptThe backtracking algorithm is actually an enumeration-like search attempt process, which is m ...
Data Structure and Algorithms | 2020-03-16 Leetcode 77. Combinations Question Given n, k, select k numbers from {1, 2, 3 ... n}, output all possible, and sort numbers ...
Java | 2020-03-13 Java CountDownLatch The JDK concurrency package provides several very useful tool classes. These tool classes provide us ...
Data Structure and Algorithms | 2020-03-09 Leetcode 47. Permutations II Question Similar to 46. Permutations, the difference is that there will be duplicates in the inpu ...
Spring Cloud | 2020-03-06 Spring Cloud 12: Message bus Before we start talking about Spring Cloud Bus, let’s look at another IT term: ESB (Enterprise Servi ...