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paper reading(4) - LIME: Low-light Image Enhancement via Illumination Map Estimation
LIME: Low light Image Enhancement via Illumination Map Estimation [toc] 1. approach Retinex theory In this paper, A method enhancing low light image i ...
分类:其他好文   时间:2020-01-25 20:47:44    阅读次数:157
PAT (Advanced Level) 1060 Are They Equal
题解 找出有效的字符串(t),第一个非零数字的位置(zero)和小数点的位置(point)。 若 s = "0012.104654",N = 4 则 t = "12104654",zero = 2,point = 4,所以答案为 0.1210*10^(point-zero) 若 s = "0000. ...
分类:其他好文   时间:2020-01-25 16:59:32    阅读次数:82
PAT Advanced 1092 To Buy or Not to Buy (20分)
Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of b ...
分类:其他好文   时间:2020-01-25 16:43:03    阅读次数:104
SQL基础教程(第2版)第6章 函数、谓词、CASE表达式:练习题
SELECT SUM(CASE WHEN sale_price <= 1000 THEN 1 ELSE 0 END) AS low_price, SUM(CASE WHEN sale_price BETWEEN 1001 AND 3000 THEN 1 ELSE 0 END) AS mid_pric ...
分类:数据库   时间:2020-01-25 15:37:53    阅读次数:101
PAT Advanced 1096 Consecutive Factors (20分)
Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3×5×6×7, where 5, 6, a ...
分类:其他好文   时间:2020-01-25 15:29:55    阅读次数:87
PAT Advanced 1071 Speech Patterns (25分)
People often have a preference among synonyms of the same word. For example, some may prefer "the police", while others may prefer "the cops". Analyzi ...
分类:其他好文   时间:2020-01-25 11:42:07    阅读次数:75
PAT Advanced 1084 Broken Keyboard (20分)
On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc ...
分类:其他好文   时间:2020-01-25 11:41:55    阅读次数:76
.net core3.1 web api中使用newtonsoft替换掉默认的json序列化组件
在微软的文档中,有着较为详细的替换教程 https://docs.microsoft.com/zh-cn/aspnet/core/web-api/advanced/formatting?view=aspnetcore-3.1 但是微软的文档并不算太详细,对于新手而言,着实不算太友好。以下是我基于微软 ...
分类:Windows程序   时间:2020-01-25 10:32:00    阅读次数:969
PAT (Advanced Level) Practice 1068 Find More Coins
题解 01背包板子 + 记录路径。这次的记录路径比较特殊,要从多组解中找到一组由尽量小价值的硬币组成的解。所以不能利用一维数组记录路径,path[目前重量] = 物品序号,因为这样最后只能记录一个可能符合或不符合要求解。所以应该利用二维数组记录路径,path[ 物品序号 ][ 目前重量 ] = 1, ...
分类:其他好文   时间:2020-01-24 23:46:28    阅读次数:146
八、二分查找
二分查找常用与一个 有序 序列或一个具有 单调性 问题中。 8.1 编程思路: 1. 设有一数组 $a[n]$ ,数组中的元素按值从小到大排列有序。用变量 $low, high$ 和 $mid$ 分别指示待查元素所在区间的下界、上界和中间位置。初始时,$low=0,high=n 1$ ,查找 $x$ ...
分类:其他好文   时间:2020-01-24 14:32:14    阅读次数:74
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