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728. Self Dividing Numbers
Problem : A self dividing number is a number that is divisible by every digit it contains. For example, 128 is a self dividing number because 128 % 1 ...
分类:其他好文   时间:2020-04-19 09:12:52    阅读次数:59
indexOf判断字符串是否包含
我们很多时候会不自觉的在js代码里对一个字符串进行如下操作: str.contains("substr"); 但是js里面没有这个contains方法,这是后台的方法,而js提供了另一个方法indexOf: var ceshi = str.indexOf("substr") if(ceshi != ...
分类:其他好文   时间:2020-04-18 15:28:51    阅读次数:83
查询表中最新一期资产负债率 ERROR 1055 (42000): Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column
mysql> select ts_code, max(end_date), debt_to_assets from tushare.fina_indicator group by ts_code; ERROR 1055 (42000): Expression #2 of SELECT list is ...
分类:其他好文   时间:2020-04-18 11:59:16    阅读次数:76
Genymotion 安装apk过程中遇到的问题总结
question1: An error occured while deploying the file.This probably means that the app contains ARM native code and your Genymotion device cannot run A ...
分类:其他好文   时间:2020-04-16 13:33:25    阅读次数:253
HDoj 2054 A == B ?
Problem Description Give you two numbers A and B, if A is equal to B, you should print "YES", or print "NO". Input each test case contains two numbers ...
分类:其他好文   时间:2020-04-14 20:21:08    阅读次数:70
POJ1852 Ants 题解
题目 An army of ants walk on a horizontal pole of length l cm, each with a constant speed of 1 cm/s. When a walking ant reaches an end of the pole, it i ...
分类:其他好文   时间:2020-04-14 15:20:24    阅读次数:89
Bound Found POJ - 2566 (尺取好题)
Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration (that must be going th ...
分类:其他好文   时间:2020-04-13 12:16:36    阅读次数:87
LeetCode 周赛 184
"第一题" 判断字符串是不是子串,效率高的方式应该是字典树,按照字典序排序后,建树,再建的过程中就可以得到答案。 但是这是比赛中,又是第一题,所以直接用contains了 c "第三题" 很简单的一道字符串替换的题目 ...
分类:其他好文   时间:2020-04-12 14:04:16    阅读次数:73
一文搞定Java集合类,你还在为Java集合类而烦恼吗?
导读:你还在为集合类而烦恼吗?别担心,我花了几天时间整理了一下集合类,文章通俗易懂,看完这篇文章保证让你茅塞顿开。内容很全,所以文章有点长,建议收藏再看。 文章目录 1.什么是集合,要她作甚? 2.集合存储的数据类型? 3.常用的集合类 4.Collection接口 Contains方法的进阶 5. ...
分类:编程语言   时间:2020-04-12 11:06:22    阅读次数:89
HDoj 2052 Picture
Problem Description Give you the width and height of the rectangle,darw it. Input Input contains a number of test cases.For each case ,there are two n ...
分类:其他好文   时间:2020-04-11 23:29:43    阅读次数:97
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