Coins I 题目描述 Alice and Bob are playing a simple game. They line up a row of n identical coins, all with the heads facing down onto the table and the t ...
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其他好文 时间:
2019-08-08 16:19:11
阅读次数:
92
*单行函数 *length(获取字节个数) select length("join") 返回4 *concat(拼接) select concat("firstname","_","last_name"); firstname_last_name *upper(将所有字母变大写) select up ...
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数据库 时间:
2019-08-07 22:49:22
阅读次数:
116
题意:输入一个m,和n个数,输出所有数据组合相加和为m的组合,输出的数列不重复; emmmm....一开始是想dfs全找出来存起来然后去重,然后发现自己数据结构也很菜,实现不了,看了大佬的博客换新思路;这个题让我对dfs更懂了一些。 解释无能...直接上代码加注释 ...
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其他好文 时间:
2019-08-07 22:44:21
阅读次数:
101
问题 J: Degree Sequence of Graph G 题目描述 Wang Haiyang is a strong and optimistic Chinese youngster. Although born and brought up in the northern inland c ...
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其他好文 时间:
2019-08-07 21:02:04
阅读次数:
191
缺少2或3,执行git push会出现"Everything up-to-date" ...
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其他好文 时间:
2019-08-07 19:06:51
阅读次数:
63
Description here is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, ...
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其他好文 时间:
2019-08-05 19:06:21
阅读次数:
95
Create a new application with Typescript: Then: Run: ...
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其他好文 时间:
2019-08-04 21:13:44
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163
Executing tasks: [:app:generateDebugSources] Configuration on demand is an incubating feature.:app:preBuild UP-TO-DATE:app:preDebugBuild UP-TO-DATEaid ...
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其他好文 时间:
2019-08-04 01:25:33
阅读次数:
161
The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elev ...
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其他好文 时间:
2019-08-03 11:19:56
阅读次数:
104