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Dancing Link专题
1、hust 1017 Exact cover (Dancing Links 模板题) 题意:n*m的单位矩阵。现在要选一些行,使得这些行的集合中每列只出现一个1. 思路:裸的精确覆盖问题。刷一遍模板。 1 #include <iostream> 2 #include <stdio.h> 3 #in ...
分类:其他好文   时间:2017-08-14 00:31:32    阅读次数:130
CSS background-size 属性详解
css background-size 属性详解,background-size 指定背景图像大小,以象素或百分比显示,当指定为百分比时,大小会由所在区域的宽度、高度以及 background-origin 的位置决定,还可以通过 cover 和 contain 来对图片进行伸缩。backgroun ...
分类:Web程序   时间:2017-08-12 12:36:18    阅读次数:188
P3717 [AHOI2017初中组]cover
题目背景 以下为不影响题意的简化版题目。 题目描述 一个n*n的网格图上有m个探测器,每个探测器有个探测半径r,问这n*n个点中有多少个点能被探测到。 输入输出格式 输入格式: 第一行3个整数n,m,r 接下来m行,每行两个整数x,y表示第i个探测器的坐标 输出格式: 能被探测到的点的个数 输入输出 ...
分类:其他好文   时间:2017-08-11 20:29:51    阅读次数:153
[Leetcode] Binary tree -- 617. Merge Two Binary Trees
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n ...
分类:其他好文   时间:2017-08-06 00:56:49    阅读次数:213
617. Merge Two Binary Trees
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n ...
分类:其他好文   时间:2017-07-27 18:37:54    阅读次数:163
css3-特性
背景ie9+ background-size 为背景图片定义宽高 cover 铺满背景区域,多余的裁切 contain 缩放图片完全显示出来,背景大小不符合有留白 px em % 注:如果自定义则传递两个参数,background-attachment为fixed时无效 ie7 8兼容写法:filt ...
分类:Web程序   时间:2017-07-25 10:13:13    阅读次数:151
Merge Two Binary Trees[LeetCode]
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n ...
分类:其他好文   时间:2017-07-24 21:20:16    阅读次数:213
Fw: EPM 11.1.2.x – Planning/PBCS Best Practices for BSO Business Rule Optimisation
1. Introduction This document is intended to provide best practices for Business Rule Optimisation for Planning and PBCS models. It will cover items w ...
分类:其他好文   时间:2017-07-13 00:53:33    阅读次数:275
leetcode merge list and add two number,ismatch
preview: '.' Matches any single character. '*' Matches zero or more of the preceding element. The matching should cover the entire input string (not p... ...
分类:其他好文   时间:2017-07-10 10:37:37    阅读次数:179
[LeetCode] Merge Two Binary Trees
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n ...
分类:其他好文   时间:2017-07-08 21:06:52    阅读次数:119
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