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hive array、map、struct使用

hive提供了复合数据类型：Structs： structs内部的数据可以通过DOT（.）来存取，例如，表中一列c的类型为STRUCT{a INT; b INT}，我们可以通过c.a来访问域aMaps（K-V对）：访问指定域可以通过["指定域名称"]进行，例如，一个Map M包含了一个group-》gid的kv对，gid的值可以通过M['group']来获取Arrays：arr ...
hive复合类型mapstructarray 
daizj 评论(0) 有2091人浏览 2015-11-06 19:40

LeetCode-63-Unique Paths II

  Unique Paths II   来自 <https://leetcode.com/problems/unique-paths-ii/>   Follow up for "Unique Paths":   Now consider if some obstacles are added to the grids. How many uniqu ...
array
随便小屋 评论(0) 有1172人浏览 2015-09-14 11:04

LeetCode-48-Rotate Image

Rotate Image     来自 <https://leetcode.com/problems/rotate-image/> You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could yo ...
array
随便小屋 评论(0) 有953人浏览 2015-09-07 21:30

LeetCode-74-Search a 2D Matrix

Search a 2D Matrix   来自 <https://leetcode.com/problems/search-a-2d-matrix/> Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following propertie ...
array
随便小屋 评论(0) 有980人浏览 2015-09-07 20:24

【总结】关于List的一些容易出错的地方

1.关于list.isEmpty 只要有list.add操作。即使是list.add("") （1次或若干次），list.isEmpty也是返回false; 如果你仅仅是声明一个List，而没有add操作，则li ...
javaseListArray操作容易出错 
Everyday都不同 评论(1) 有2506人浏览 2015-09-07 17:19

LeetCode-34-Search for a Range

Search for a Range   来自 <https://leetcode.com/problems/search-for-a-range/> Given a sorted array of integers, find the starting and ending position of a given target value. Your algorithm' ...
array
随便小屋 评论(0) 有856人浏览 2015-08-31 08:45

LeetCode-73-Set Matrix Zeroes

Matrix Zeroes   来自 <https://leetcode.com/problems/set-matrix-zeroes/> Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. ...
array
随便小屋 评论(0) 有1029人浏览 2015-08-30 13:56

LeetCode-62-Unique Paths*(动态规划)

 Unique Paths   来自 <https://leetcode.com/problems/unique-paths/>   A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move ...
array
随便小屋 评论(0) 有957人浏览 2015-08-29 20:22

LeetCode-79-Word Search*

  Word Search       来自 <https://leetcode.com/problems/word-search/>   Given a 2D board and a word, find if the word exists in the grid.   The word can be constructed from letters of s ...
array
随便小屋 评论(0) 有719人浏览 2015-08-29 11:15

LeetCode-209-Minimum Size Subarray Sum

Minimum Size Subarray Sum   来自 <https://leetcode.com/problems/minimum-size-subarray-sum/> Given an array of n positive integers and a positive integer s, find the minimal length of a subarr ...
array 
随便小屋 评论(0) 有1088人浏览 2015-08-27 14:28

Leetcode-217-Contains Duplicate

Contains Duplicate 来自 <https://leetcode.com/problems/contains-duplicate/> Given an array of integers, find if the array contains any duplicates. Your function should return true if any value ...
array 
随便小屋 评论(0) 有743人浏览 2015-08-27 08:41

Leetcode-219-Contains Duplicate II

Contains Duplicate II 来自 <https://leetcode.com/problems/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 
随便小屋 评论(0) 有696人浏览 2015-08-27 08:40

Leetcode-228-Summary Ranges

Summary Ranges   来自 <https://leetcode.com/problems/summary-ranges/> Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1,2,4,5,7], ret ...
array 
随便小屋 评论(0) 有689人浏览 2015-08-27 08:38

Leetcode-169-Majority Element

Majority Element   来自 <https://leetcode.com/problems/majority-element/>   Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ ...
array 
随便小屋 评论(0) 有599人浏览 2015-08-26 14:53

Leetcode-119-Pascal's Triangle II

Pascal's Triangle II     来自 <https://leetcode.com/problems/pascals-triangle-ii/> Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3, Return [1,3,3,1]. ...
算法array 
随便小屋 评论(0) 有704人浏览 2015-08-26 09:27

Leetcode-118-Pascal's Triangle

Pascal's Triangle   来自 <https://leetcode.com/problems/pascals-triangle/> Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5, Return [      [1], ...
array 
随便小屋 评论(0) 有689人浏览 2015-08-26 08:51

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