Eversliver

摘要： 最近做教研室的项目，需要只能存在一个接收数据的线程，那么我就想把这个线程设置成一个静态对象。但是在connect信号与槽的时候出了一点问题，最后搞好了，现在这mark一下：比如说一个声明了一个静态的thread以及一个成员Thread的话： 1 class A{ 2 private: 3 T... 阅读全文

摘要： Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon... 阅读全文

摘要： Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theHamming weight).For example, the 32-bit in... 阅读全文

摘要： Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2... 阅读全文

摘要： Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ... 阅读全文

摘要： 程序中有时候会遇到这种情况，就是需要不停的去分配以及释放内存。带来的是不停的调用new以及delete带来的开销。而且由于全局的new以及delete往往对多线程做出了并发保护，所以在单线程情况下这更带来一种浪费，一般的情况下是去实现一个单线程的内存池来进行性能优化，配合所需的类往往带来很好的性能提... 阅读全文

摘要： Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted in asc... 阅读全文

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： Given an array of strings, group anagrams together.For example, given:["eat", "tea", "tan", "ate", "nat", "bat"],Return:[ ["ate", "eat","tea"], ["na... 阅读全文

摘要： Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.额，当然我用的就是暴力搜索来，没用到KMP之类的算法... 阅读全文