Programmer Think

A. Life of a Flower Title Description Petya has an interesting flower. Petya is a busy man, so she sometimes forgets to water. From the beginning of Petya's life, you have n days. You must determine what happened to his flowers in the end. The flowers grow as follows: If the flower is not watered for two consecutive days, it will die. If th ...

This blog is a learning note written after learning according to the data structure tutorial of Shang Silicon Valley teacher in station b Some concepts and pictures are from videos. The code and screenshots are done by yourself. The focus of this blog is on the code comments written by yourself Shang Silicon Valley Java data structure and Java ...

234. Palindrome linked list Very representative! It includes linked list traversal, fast and slow pointer, midpoint template, linked list data comparison and linked list inversion! Very representative class Solution { public boolean isPalindrome(ListNode head) { if(head == null || head.next == null) return true; // Fi ...

Summary A queue is actually a queue in real life. The people at the head of the queue go first and the newcomers line up at the end of the queue. First in, first out, last in, last out.The implementation of queue requires a team head pointer and a team tail pointer for entering and leaving the team. For circular queues, during initializati ...

Fight with algorithms After a week of algorithm battle, I finally touched the tail of the algorithm (although the algorithm seems to have no tail). Next, I'll summarize my harvest: 1. Review of ranking Understanding of sorting algorithm: 1. Bucket sorting: you need an array with three variables. Note that the size of the array is the maximum ...

preface Now more and more projects begin to use workflow to meet their daily work. Today, let's take a look at the workflow of Activiti. Let's start with BPMN painting Environment installation BPMN documents about processes are mainly integrated through eclipse development tools. The idea is mainly painted by actiBPM, but actiBPM is no long ...

1, Directed graph In real life, many application related graphs are directional. The most intuitive is the network. You can jump from page a to page B through links. Then the direction of a and B connection is a - > b, but it can not be said to be B - > A. at this time, we need to use a directed graph to solve this kind of problem. T ...

As mentioned earlier, the biggest hidden danger of lazy list is logical deletion, but there is no physical deletion problem. Therefore, EBR first solve d this problem to him. I EBR modification int parse_delete(intset_l_t *set, val_t val) { node_l_t *pred, *curr; int result, validated, isVal; while(1) { //Init pred ...

Because of the lack of c language library functions, when doing some arithmetic problems, when you want to call some functions of the data structure, you always have to tap them manually or look around, so I think why not summarize some commonly used functions into it. When you write down a small book, you can only use Ctrl+C,V once (doge) to i ...

Before we started learning and collecting, we also looked for some information in advance. Recommend this blogger's article; Explain and collect easy to understand. Know the blogger: Pecco --> Algorithmic Learning Notes (1): and collect Can be used and collected to solve node connection problems on the network; Specifically speaking r ...