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LeetCode——Consecutive Numbers
Description:Write a SQL query to find all numbers that appear at least three times consecutively.+----+-----+| Id | Num |+----+-----+| 1 | 1 || 2 ...
分类:其他好文   时间:2015-07-10 02:13:08    阅读次数:200
[Leetcode]-Contains Duplicate HashTbale重解
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is...
分类:其他好文   时间:2015-07-07 22:49:52    阅读次数:142
设计模式6大原则(5)-得墨忒耳
迪米特法则(Law of Demeter)又叫作最少知识原则(Least Knowledge Principle 简写LKP),就是说一个对象应当对其它对象有尽可能少的了解,不和陌生人说话。英文简写为: LoD.迪米特法则能够简单说成:talk only to your immediate ...
分类:其他好文   时间:2015-07-07 14:30:59    阅读次数:140
[LeetCode] Maximum Product Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest product.For example, given the array[2,3,-2,4],the...
分类:其他好文   时间:2015-07-06 19:44:47    阅读次数:115
设计模式--迪米特法则(Lod/LKP)
迪米特法则:(Law of Demeter, LoD),也称最少知识原则(Least Knowledge Principle, LKP) 理解:      如果两个类不必彼此直接通信,那么这两个类就不应该发生直接的相互作用。如果其中一个类需要调用另一个类的某一个放发的话,可以通过第三者转发这个调用。   只和朋友交流(更准确来讲是:直接的朋友) 每个对象都必然会与其...
分类:其他好文   时间:2015-07-06 17:47:35    阅读次数:142
leetcode:Contains Duplicate
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr...
分类:其他好文   时间:2015-07-05 22:29:21    阅读次数:151
Always young
原文 My aunt Jennifer is an actress. She must be at least thirty-five years old. In spite of this, she often appears on the stage as a young girl. Jennifer will have to take part in a new play soon...
分类:其他好文   时间:2015-07-04 17:03:49    阅读次数:136
【莫比乌斯反演】关于Mobius反演与lcm的一些关系与问题简化(BZOJ 2154 crash的数字表格&&BZOJ 2693 jzptab)
BZOJ 2154 crash的数字表格Description 今天的数学课上,Crash小朋友学习了最小公倍数(Least Common Multiple)。对于两个正整数a和b,LCM(a, b)表示能同时被a和b整除的最小正整数。例如,LCM(6, 8) = 24。回到家后,Crash还在想....
分类:其他好文   时间:2015-07-03 21:53:27    阅读次数:187
BZOJ 2154: Crash的数字表格
Description今天的数学课上,Crash小朋友学习了最小公倍数(Least Common Multiple)。对于两个正整数a和b,LCM(a, b)表示能同时被a和b整除的最小正整数。例如,LCM(6, 8) = 24。回到家后,Crash还在想着课上学的东西,为了研究最小公倍数,他画了一...
分类:其他好文   时间:2015-07-02 00:54:58    阅读次数:198
Leetcode 217 Contains Duplicate
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr...
分类:其他好文   时间:2015-06-30 12:18:02    阅读次数:100
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