码迷,mamicode.com
首页 >  
搜索关键字:two sum    ( 31846个结果
4Sum
Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ...
分类:其他好文   时间:2014-06-04 22:44:27    阅读次数:250
每天努力一点之SQL(二) count sum case when then group by
1.select sum(CASE WHEN A.[STATUS]=0 THEN 1 ELSE 0 end) as a1,sum(CASE A.[STATUS] WHEN 1 THEN 1 ELSE 0 end) as a2,sum(CASE A.[STATUS] WHEN 2 THEN 1 ELS...
分类:数据库   时间:2014-06-04 21:10:46    阅读次数:513
Container With Most Water
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类:其他好文   时间:2014-06-04 21:09:33    阅读次数:307
Minimum Path Sum
Given amxngrid filled with non-negative numbers, find a path from top left to bottom right whichminimizesthe sum of all numbers along its path.Note:Yo...
分类:其他好文   时间:2014-06-04 20:57:08    阅读次数:360
Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类:其他好文   时间:2014-06-04 20:19:04    阅读次数:313
leetcode -- Add Binary
Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100".class Solution {public: string addBinary(str...
分类:其他好文   时间:2014-05-30 08:39:11    阅读次数:270
数据库-04
--聚合函数:返回一个值,对表中所有行进行统计,忽略NULL值--sum:求和(只能数字类型)select sum(age) from stuInfo--avg:平均值(只能数字类型)select avg(age) from stuInfo--max:最大值(只能数字类型或者是字符串)select ...
分类:数据库   时间:2014-05-30 02:49:16    阅读次数:289
SQL总结(一)基本查询
本文希望通过简单的总结,把常用的查询方法予以总结,希望能够明确在心主要涵盖:模糊查询、排序、分组、集合函数、TOP、Case包括:Between、In、Like、And、Or、Order by包括:Group by、Distinct、MAX\MIN、Avg、Count、Sum、Having、Top、...
分类:数据库   时间:2014-05-29 23:13:46    阅读次数:456
Leetcode刷题录之Two Sum
题意大概是给出一个数列num,和一个目标数target,然后要找出数列中的两个数,使得这两个数之和等于目标数,输出这两个数的下标值(从1开始算)。 一个比较暴力的方法是用一个二重循环直接遍历序列,在第一重循环中找到a,在第二重循环中找到b,使得a+b=target,这种做法的时间复杂度是O(n^2....
分类:其他好文   时间:2014-05-29 21:01:06    阅读次数:307
[CC150] Find a line passing the most number of points
Problem: Given a two-dimensional graph with points on it, find a line which passes the most number of points.此题是Cracking the code 5th edition 第七章第六题,思...
分类:其他好文   时间:2014-05-29 08:10:38    阅读次数:292
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!