常用的集合有List,Set,Map,这三个都是接口,其中List,和Set继承于Collection而Map是一个可以保存键值对的接口Collection接口Collection是最基本的集合接口,一个Collection代表一组Object,即Collection的元素(Elements)。一些...
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编程语言 时间:
2014-09-09 11:14:28
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295
In computer science, functional programming is a programming paradigm, a style of building the structure and elements of computer programs, that treat...
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其他好文 时间:
2014-09-09 11:07:08
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225
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.难度70,与Convert Sorted Array to Binary Sear...
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其他好文 时间:
2014-09-08 06:26:16
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263
Longest Consecutive Sequence
Total Accepted: 19169 Total
Submissions: 68303My Submissions
Given an unsorted array of integers, find the length of the longest consecutive elements sequence...
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其他好文 时间:
2014-09-07 21:12:55
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294
See LCS again时间限制:1000 ms | 内存限制:65535 KB难度:3描述There are A, B two sequences, the number of elements in the sequence is n、m;Each element in the seque.....
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其他好文 时间:
2014-09-07 21:01:55
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286
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of ...
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其他好文 时间:
2014-09-07 14:40:25
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188
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic...
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其他好文 时间:
2014-09-07 12:13:15
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209
Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't mat...
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其他好文 时间:
2014-09-06 12:09:23
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129
Given a collection of integers that might contain duplicates, S, return all possible subsets.Note:Elements in a subset must be in non-descending order...
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其他好文 时间:
2014-09-06 07:32:22
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239
Problem Description:
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.
分析:很容易想到的一种解法是将链表中所有的元素保存到数组中,然后每次取中间值进行构造,时间复杂度为O(n),空间复杂度为O(n)。具体...
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其他好文 时间:
2014-09-05 18:14:11
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223