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UVA - 1485 Permutation Counting
Description Given a permutation a1, a2,...aN of {1, 2,..., N}, we define its E-value as the amount of elements where ai > i. For example, the E-value of permutation {1, 3, 2, 4} is 1, while th...
分类:其他好文   时间:2014-08-23 16:54:31    阅读次数:232
LeetCode——4Sum
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 which gives the sum of target. Note: Element...
分类:其他好文   时间:2014-08-23 16:49:21    阅读次数:166
LeetCode——3Sum
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 zero. Note: Elements in a triplet (a,b,c...
分类:其他好文   时间:2014-08-23 15:24:41    阅读次数:153
Subsets
Given a set of distinct integers, S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not c...
分类:其他好文   时间:2014-08-23 15:11:00    阅读次数:153
HDU 3584 Cube (三维树状数组)
Problem Description Given an N*N*N cube A, whose elements are either 0 or 1. A[i, j, k] means the number in the i-th row , j-th column and k-th layer. Initially we have A[i, j, k] = 0 (1 <= i, j, k <...
分类:其他好文   时间:2014-08-23 01:09:39    阅读次数:274
两种方法删除ArrayList里重复元素
这里有两种方法帮你删除在一个ArrayList里重复的elements。下面的程序片段里,removeDuplicate方法不维护顺序 (Order),而removeDuplicateWithOrder方法会保持顺序 (Order),但会有些性能上的牺牲。The removeDuplicate Me...
分类:其他好文   时间:2014-08-22 19:37:59    阅读次数:174
cheap ghds this probably sounds really
I know cheap ghds this probably sounds really vain but I live in upstate NY and the elements sucks! I ghds am just in need of a few foils to embellish...
分类:其他好文   时间:2014-08-21 12:58:04    阅读次数:202
Subsets II
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...
分类:其他好文   时间:2014-08-20 19:37:12    阅读次数:175
block,inline和inline-block概念和区别
总体概念block和inline这两个概念是简略的说法,完整确切的说应该是 block-level elements (块级元素) 和 inline elements (内联元素)。block元素通常被现实为独立的一块,会单独换一行;inline元素则前后不会产生换行,一系列inline元素都在一行...
分类:其他好文   时间:2014-08-20 16:10:12    阅读次数:245
【Leetcode】4sum
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...
分类:其他好文   时间:2014-08-20 14:06:32    阅读次数:182
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