摘要： Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo 阅读全文

摘要： 原题： https://leetcode.com/problems/add-two-numbers/ You are given two linked lists representing two non-negative numbers. The digits are stored in reve 阅读全文

摘要： 原题: https://leetcode.com/problems/two-sum/ Given an array of integers, find two numbers such that they add up to a specific target number. The functio 阅读全文

摘要： I.vector1.头文件：#include //容器vector是一个能实现随机存取、插入删除的动态数组，还可以当栈使。 2.创建： vector v1; // 里可以是struct或者vector嵌套：vector > ivec;vector是... 阅读全文

摘要： 上海交通大学张志华老师的公开课《机器学习导论》，课程链接：http://ocw.sjtu.edu.cn/G2S/OCW/cn/CourseDetails.htm?Id=397ok，直奔主题,做好笔记。（一） 基本概念data mining 和 machine learning本质是一码事儿，ml更贴... 阅读全文