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java数据类型图
┏数值型━┳━整数型:byte short int long ┏基本数据类型━━┫ ┗━浮点型:float double ┃ ┣字符型:char 数据类型╋ ┗布尔型:boolean ┃ ┏类(class) ┗引用数据类型━━╋接口(interface) ┗数组(array) ...
分类:编程语言   时间:2016-09-15 16:29:58    阅读次数:159
javascript_core_03
1、数组:连续存储多个数据,一组连续变量的集合; ①创建空数组:var arr=【】;或者var arr=new Array(); ②创建初始化数组:var arr=【值1,值2,……】;或者var arr=new Array(值1,值2,……); ③创建包含n个空元素的数组:var arr=new ...
分类:编程语言   时间:2016-09-15 15:08:48    阅读次数:122
Maximum Product Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest product. For example, given the array [2,3,-2,4],t ...
分类:其他好文   时间:2016-09-15 15:05:05    阅读次数:135
55. Jump Game
Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maxim ...
分类:其他好文   时间:2016-09-15 14:55:01    阅读次数:142
Array.prototype.forEach数组遍历
forEach是Array新方法中最基本的一个,就是遍历,循环。先看以前是怎么遍历数组的 常用遍历 排除null与undefined和不存在元素的遍历 排除undefined和不存在元素的遍历 跳过不存在的元素,如没有值的undefined元素 ECMAScript5中遍历数组元素的新方法,使用fo ...
分类:编程语言   时间:2016-09-15 14:53:12    阅读次数:149
122. Best Time to Buy and Sell Stock II
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may comple ...
分类:其他好文   时间:2016-09-15 13:44:57    阅读次数:137
53. Maximum Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,-1,2, ...
分类:其他好文   时间:2016-09-15 13:40:32    阅读次数:120
1. Two Sum
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 ex ...
分类:其他好文   时间:2016-09-15 13:36:41    阅读次数:105
219.Contains Duplicate II
Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the ...
分类:其他好文   时间:2016-09-15 12:22:53    阅读次数:144
js中数组Array的一些常用方法总结
var list = new Array()是我们在js中常常写到的代码,今天就总结哈Array的对象具有哪些方法。 list[0] = 0; list[1] = 1; list[2] = 2; 或者这样声明:var list = [0,1,2] 1 shift()t:删除数组的第一个元素,返回删除 ...
分类:编程语言   时间:2016-09-15 11:02:49    阅读次数:151
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