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Data structure & Algorithm

algos

DS & Algos の importance fundamental course training thought pattern practical meaning interview salary & position の upgrade basic DS Array List Stack Queue & Dequ...

Posted by Woncz on September 20, 2019

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unknown world

发现之旅 2019-09-16 牛顿迭代法 1 2019-09-17 从2-3树到红黑树 2019-09-18 B树 and B+树 2019-09-19 等比数列求和公式 1 2 3 4 Sn = 1, q, q^2, q^3 ... q^n q * Sn = q, q^2, q^3 ... q^n, q^n+1 Sn - q * Sn = 1 - q^n+1 Sn = (1 ...

Posted by Woncz on September 16, 2019

arts week07

arts

Algorithm LeetCode算法题 Implement atoi which converts a string to an integer. The function first discards as many whitespace characters as necessary until the first non-whitespace character is foun...

Posted by Woncz on September 12, 2019

arts week06

arts

Algorithm LeetCode算法题 Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 120 Output: 21 Note: ...

Posted by Woncz on September 4, 2019

优秀到不能被忽视

So good they cann't ignore you

· 优秀到不能被忽视 rule1:不要追随自己的热情 1 2 3 4 不要被乔帮主给带偏了 激情是精通的副产品，精通的主要产品是胜任与自主 人们总是急于开始生活，但这是个悲哀 -- 好应景 要在某方面有所擅长，但这需要时间 rule2:工匠思维胜过激情思维 ``` 把时间花在重要的事情上，而不是花在紧急的事情上 伟大的成就不在于天赋，而在于在正确的时间...

Posted by Woncz on August 30, 2019

arts week05

arts

Algorithm LeetCode算法题 The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) ...

Posted by Woncz on August 23, 2019

arts week04

arts

Algorithm LeetCode算法题 Given a string, find the length of the longest substring without repeating characters. Example 1: Input: “abcabcbb” Output: 3 Explanation: The answer is “abc”, with the l...

Posted by Woncz on August 16, 2019

arts week03

arts

Algorithm LeetCode算法题 There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). ...

Posted by Woncz on August 12, 2019

arts week02

arts

Algorithm LeetCode算法题 You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add t...

Posted by Woncz on July 24, 2019

arts week01

arts

Algorithm LeetCode算法题 Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, an...

Posted by Woncz on July 16, 2019

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