leetcode 12

Quicksort was an efficient sorting algorithm. The principle was to divide the records to be sorted into two independent parts by sorting. The keywords of one part of the records were smaller than the keywords of the other part of the records. Then, the two parts of the records were sorted separately to achieve the order of the entire sequence. In terms of code implementation, there are the following sorting steps: first select the data of the left node as the pivot (reference value), start from the right, traverse the node data to the left (under the premise that the right > left condition is met), if the node data> pivot, continue to move to the left; If the node data <= pivot, assign the data of the current node to the left node, then stop the right traverse and start the left traverse. Starting from the left, traverse the node data to the right (under the premise that the left > right condition is met). If the node data < pivot, continue to move to the right; if the node data>= pivot, assign the current node data to the right node, then stop the left traverse and start the right traverse. When left and right overlap, the traverse ends, and the pivot is assigned to the coincidence node. The left side of the pivot node is the left array, and the right side is the right array. After that, the above steps were performed on the left array and the right array to complete the quick sorting. In addition, the principle of quick sorting was also applicable when dealing with some related problems in Leetcode (such as the k-th smallest number and k-th largest number in the Leetcode topk problem). However, in different scenarios, it may be necessary to make appropriate adjustments according to the requirements of the question and the characteristics of the data structure. For example, when sorting the linked list, it may not be suitable to use the classic quick sort because the single-directional nature of the linked list is not good to traverse from the back to the front. If additional forward connections are added, additional space is needed.

I had a LeetCode success story where I focused on understanding the problem - solving patterns. I noticed that many problems had similar underlying concepts. So, I made a list of common patterns like two - pointer, sliding window, and dynamic programming. I studied each pattern intensively, practiced related problems, and soon I could quickly identify which pattern to apply to a new problem. This approach really sped up my progress on LeetCode.

For me, achieving success on LeetCode was about learning from others. I read a lot of solutions posted by top - rated users. Their code was often very clean and efficient. I studied how they used different data structures and algorithms. One time, I was stuck on a binary search problem. After looking at someone else's solution, I understood a better way to handle the boundary conditions. This way of learning from the community was really helpful.

[Life Death Overlord].

You can search for the "Douluo Continent 2: The Peerless Tang Sect" APP in the relevant app store (such as the App Store or Google Play) to download and read it. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

"After Financial Freedom" was a novel about urban life by the Buddhist author, Fallen Leaves. It told the story of Chu Xia, an ordinary worker. Three years after graduating from university, he was mediocre and mediocre. He could not afford a house, a car, or even a relationship. One day, the mediocre Chu Xia suddenly opened his financial eyes. He could see the trend of the financial market the next day. In less than a year, Chu Xia went from a worker to a top boss in the financial world and achieved financial freedom. In the process of achieving financial freedom, and after that, Chu Xia had experienced many interesting things. She had also seen many people's emotions and reality. In the end, Chu Xia understood something. Money was not omnipotent, but it could solve 99% of the problems. The character information was as follows: Chu Xia was the main character. She was 25.0 years old, her birthday was 08/06, her constellation was Leo, her height was 180cm, and her weight was 80Kg. Wen Xin was the supporting actress, Su Lin was the supporting actress, and Ye Liling was the supporting actress. "The Age of Lords" was a novel written by the author, Yuha Kaede. It told the story of an era where all the people were lords, an era where everyone could become kings. Who could become the emperor of the world? (This book will show more confrontations between two armies, clashes between cold weapons, and the participation of global historical figures, orcs, elves, etc.) [QQ group 661059014]. The character information included: Ye Tian is the male lead, 24.0 years old, 178.0cm tall, 73.0Kg; Yu Wan Yun is the female lead, and her information included: Cold, mature, and only gentle in front of Ouyang Luo Xue. [The granddaughter of a military commander. She is like a sister to Ouyang Luoxue. She is 175.0cm tall. Ouyang Luoxue is the female lead. The information about her is: She is cute and cute. She is loved by people around her. She likes to play tricks on people. She listens to Yu Wanyun.] The granddaughter of a military commander, who was as close as a sister to Yu Wanyun. She was 20.0 years old and 172.0 cm tall. Zhuge Liang was a supporting character. The information about him was as follows: "Liang has a plan." Xun Yu was a supporting character. The information about him was as follows: In ancient times, those who won or lost were truly talented. Even if they were weak, they would be strong. If they were not the right person, even if they were strong, they would be weak. The survival of Liu and Xiang was enough to see. Her age was 30.0 years old, her height was 178.0 cm, and her weight was 85.0 kg. Zhao Yun was a supporting character. The information about her was as follows: Blood dyed Zheng's armor red. Who dared to compete with him that day? Since ancient times, only Zhao Zilong of Changshan has been able to help a fallen lord! He was 27.0 years old, 179.0 cm tall, and 88.0 kg in weight. Ma Chao was a supporting character, and the information about him was: I am Jin Ma Chao! The player was 30.0 years old, 181.0 cm tall, and 89.0 kg in weight. He was 20.0 years old, 210.0 cm tall, and 110.0 kg in weight, and Lin Jixian was a supporting character. He was the soul of an army! His age was 17.0 years old. "The Uchiha Family's Reincarnator" was a light novel by the author, Roasted Lin Egg. It was a fantasy novel. It told the story of the fourth Ninja World War. When he saw the coffin of his ancestor, Uchiha Ban, rise up in front of him, Uchiha Minigami, who was then the fifth generation of Hokage, the Ghost Kill Squad, the Sea Emperor, and the S-class hero of the Hero Association, decided to push him back. "Super God: Something's Wrong with Superman" was a light novel by the author, Braised Luo Feiyu. It told the story of a demon: "I yearn for freedom. I want to do whatever I want." Su Yu: "Freedom, freedom. I'll blow up the known universe for you. I'll see where you can go and do whatever you want." "…" Angel: "I carry out justice. I believe that true love will last forever." Su Yu: "Even the Queen has given up on justice, yet he's still shouting about justice. Yes, true love. I believe it. It's a kind of universal will. I'll blow up the universe later and see if he still has the will." Death: I study death and embrace the descent of the void. "You're a bootlicker." Death replied,"Ultimate fear exists objectively." "You don't even dare to touch your hand. You're a bootlicker." "I…" Su Yu said,"I forgot that you're an illusionary body. You can't even be licked. You're a bootlicker." "I…" Su Yu said,"Praise the sun." "I…" Su Yu said,"I am Man Er, Su Pener. I praise the sun." "I…" Su Yu said,"I will continue to praise the sun." "I, Su Yu, am now Man Er of Su Pener, so…I praise the sun." The character information included: Qilin was the female lead, and the information about her included: Coco Aiai, Little Policeman, Little Green Plum, Spider Demon. Her age was 26.0 years old, her height was 174cm, and her weight was 55Kg. Rose was the female lead, and the information about her included: Do you want to see atoms? I'm also a god? If you don't really like it…Her age was 24.0 years old, her height was 174cm, and her weight was 58Kg. Su Yu was the male lead, and the information about her included: Lord of Krypton, her age was 26.0 years old, and her height was 187cm. Reina was the female lead, and the information about her was: Little Sun Goddess, who was a god with dreams. She was 23.0 years old, 178cm tall, and 58Kg heavy. Lian Feng was the female supporting character, and the information about her was: The Chief Secretary, the Chief Maid, who could fly. Yan was the female lead, He Xi was the female lead, Zhui was the female lead, Kesha was the female lead, Liang Bing was the female lead, and Angel Zhui was the female lead. "Growing Up with an Emperor Plan to Become a Tyrant" was a historical novel written by the author, Silent Lost. It told the story of the emperor's growth plan and the tyrant Liu Ziye of the Liu Song Dynasty during the Northern and Southern Dynasties. With his lifespan in the last phase, how could he save this tyrant who had all kinds of "great achievements"? The first step was to execute the eunuch Hua Yuan 'er, who had corrupted the hearts of the people. The second step was to reform the Qian Department. The third step was to put loyal officials in important positions. Liu Ziye was trying to restore his image and rebuild the hearts of the people. [Your goal is to unify the entire continent. You are rewarded with the title of [One Emperor of the Ages]!] The character information included: Liu Ziye was the main character, his birthday was 02/25, and his constellation was Pisces. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Here are a few possible scenarios for Snape's high-powered tear-jerking clips: 1. After Peter Pettigrew's betrayal, Snape rushed to Lily's death and held her body in grief. Although the film did not release the sound of crying, the silent contrast of the scene conveyed great sadness. 2. Before he died, he asked Harry to take the tears from the corner of his eyes and put them into the Pensieve. When he looked into Harry's eyes, his love and longing were unforgettable. He even said,"Your eyes are exactly the same as your mother's." 3. When Dumbledore asked him if he cared about Harry, he chanted the Voodoo Patronus, showed Lily's silver hind Patronus, and answered "Always," deeply and firmly. 4. The dialogue with Harry in Potions class, such as asking him,"What will I get if I add the daffodil root powder to the wormwood infusion?", hid Snape's pain and regret for Lily. Because daffodils were a kind of lily in the original book, the language of flowers was related to feelings for Lily. The bitter wormwood represented the absence, symbolizing that he had been living in the pain and regret of Lily's death. 5. His silent protection of Harry, as when Professor Zillow cursed Harry at a Quidditch match, and when he found out, he counter-cursed Harry to protect him, or when he joined the Order of the Phoenix and acted as a spy among the Death Eaters, all showed that his love for Lily extended to protecting Harry. Harry Potter and the Order of the Phoenix is not enough. Please click to read the novel!

" Thoughts on Reading 'Industrial Overlord.' The Hegemon of Industry was an industrial novel with a unique charm. From the content of the story, the protagonist's journey to industrial prosperity after his rebirth was the core of the novel. The author, Qi Cheng, relied on her rich knowledge and experience in the economic field to describe the various situations of industrial manufacturing and the development model of the technology tree in detail. The description of the reform of state-owned enterprises made the readers feel as if they were in that ever-changing era. The protagonist did not have any so-called golden fingers. He relied entirely on his own deep accumulation to promote the change of the era. This setting made the rise of the protagonist more realistic and convincing, unlike some novels that relied too much on supernatural powers. The protagonist's character was bright and magnificent. Although this character seemed traditional, it perfectly matched the theme of struggle and patriotism conveyed in the novel. The protagonist's struggle was full of vigorous energy. The spirit he showed in the face of difficulties was a vivid interpretation of the fighting spirit of the older generation of workers in New China. This spirit was not only of great significance at that time, but also had profound reference value in modern society. From the perspective of the times reflected in the novel, it was like an industrial development documentary during the reform and opening up period. The author described Qi Cheng's life in detail. Whether it was the details of industrial development or the living and working conditions of the people at that time, they were all presented to the readers through words. We can see how people in the industrial field are actively exploring and working hard under the background of reform and opening up. At the moment of the rise of the great powers, the industrial knowledge and the struggle of the working class in this novel provided an excellent window for readers to understand the background and foundation of China's rise. From the perspective of literary value," Industrial Overlord " stood out among similar works. It didn't take the route of novels that relied on fantasy plots or excessive entertainment. Instead, it used realistic strokes to dig deep into industrial topics. In today's online literature market, a large number of works were focused on popular topics such as fantasy and romance. Industrial topics were relatively small, but " Industrial Overlord " attracted many readers with its unique content and solid writing skills. It allowed readers to not only enjoy the story, but also gain a lot of knowledge about industrial development and state-owned enterprise reform. In terms of emotional expression, the protagonist's patriotic feelings ran through from beginning to end. This kind of patriotic feeling was not a simple slogan, but was integrated into every decision and struggle of the protagonist. In the historical environment of that time, patriotic sentiments inspired people to work tirelessly for the country's industrial development and the rise of the country. To the readers, this kind of emotion could arouse strong resonance, allowing them to deeply understand the great power of patriotic feelings in different eras. " Hegemon of Industry " was a masterpiece worthy of in-depth reading and savoring with its detailed description of industrial development, wonderful portrayals of the protagonist's fighting spirit and patriotic feelings, and unique realistic style. It was not only a novel, but also a portrait of an era, a spiritual inheritance that inspired contemporary people to work hard in their respective fields and contribute their strength to the development of the country and society. " Arcs of Fire " is equally exciting. Everyone is welcome to click and read it!

Here are some of the wonderful elements in the legendary live-in son-in-law novel: In some legendary novels, the protagonist had an extraordinary background. For example, there were people like Lin Qianze. He was the youngest general in the history of the Tang Empire and the godfather of the underground world who ranked first on the world's assassin list. After completing a legendary mission, he was willing to retire and become a live-in son-in-law in order to fulfill his adoptive father's long-cherished wish. He had achieved another kind of legend on the road of being a live-in son-in-law. There were also some novels with dramatic plots. Like the protagonist in a certain novel, he was originally the pride of his family, but because of an accident, he became the son-in-law of his wife's family and was despised and humiliated by his wife's family. In a family like the Lin family, he was like an invisible person. However, he accidentally found an ancient secret manual in an abandoned courtyard. It recorded a mysterious cultivation method. After cultivating with difficulty, his body underwent a magical change, and his strength and speed increased. After that, he stood out in the Martial Arts Conference and easily defeated many experts, attracting the attention of all parties. In addition, the identity of a son-in-law in some novels was accompanied by complicated family relationships and emotional entanglements. For example, the protagonist's family encountered a crisis, his wife's family faced the threat of annexation by powerful forces, and the son-in-law relied on his own strength and wisdom to resolve the crisis and change his position in the family to win respect. All of these increased the excitement of this kind of novel. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

In some novels, the female protagonist was both the CEO's secretary and the CEO's wife. For example, Jiang Yehui in "Secretary Jiang is digging a hole for the CEO again" was the CEO's secretary and also the secret CEO's wife. In "I dressed up as the CEO's female secretary in the CEO's novel, and I was also a female supporting character," Li Xiaoxiao was the CEO's female secretary and girlfriend (if things went well, she would also become the CEO's wife). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>