Just DO IT by luckygxf

摘要： 4SumGiven an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum... 阅读全文

摘要： 3Sum ClosestGiven an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three int... 阅读全文

摘要： 3SumGiven an arraySofnintegers, are there elementsa,b,cinSsuch thata+b+c= 0? Find all unique triplets in the array which gives the sum of zero.Note:El... 阅读全文

摘要： 这里我新建了两个表，一个users和test1 CREATE TABLE users(2 username varchar(20),3 pwd varchar(30)4 );5 CREATE TABLE test(6 id INT,7 username VARCHAR... 阅读全文

摘要： Word LadderGiven two words (startandend), and a dictionary, find the length of shortest transformation sequence fromstarttoend, such that:Only one let... 阅读全文

摘要： 百度提供了地图的API，可以在android手机上用，这里其实只要参考百度给的文档就好了。因为api不断在更新，所以网上的博客感觉还是不太好，直接看官网的文档比较靠谱这里照着百度文档上面提供的文档我也copy一下，简单说一下步骤1.去百度下载百度地图api的jar包，和一个.so的文档http://... 阅读全文

摘要： Remove Duplicates from Sorted List IIGiven a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the or... 阅读全文

摘要： Single Number IIGiven an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a lin... 阅读全文

摘要： Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co... 阅读全文

摘要： Insertion Sort ListSort a linked list using insertion sort.这道题用两个链表做的，这样方便一点。还有新链表头结点我没有存放内容，这样也比较方便，后面返回head1.next就好了 1 /** 2 * Definition for singl... 阅读全文