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two sum
Question 1:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of...
分类:其他好文   时间:2014-05-19 09:35:41    阅读次数:321
[leetcode]_Merge Two Sorted Lists
题目:合并两个有序单链表思路:一开始想复杂了,以为必须在原链表上修改(绕来绕去还AC了,但是思路相当绕),其实没有,按照正常地合并两个数组同样的方法也对。代码:public ListNode mergeTwoLists(ListNode l1, ListNode l2) { if(l1 ...
分类:其他好文   时间:2014-05-19 07:48:32    阅读次数:314
LeetCode: Divide Two Integers [028]
【题目】 Divide two integers without using multiplication, division and mod operator. 【题意】 计算两个数的商,不能使用乘、除、取余操作 【思路】 用加法,确定多少除数相加其和恰好<=被除数 为了提高算法效率,利用贪心思想,采用滚雪球式的翻倍叠加策略,使和快速逼近被除数 集中特殊情况需要注意: 1. 结果是负数 ...
分类:其他好文   时间:2014-05-18 10:42:00    阅读次数:259
事件传递机制总结
事件系统组成元素: 1. 每一个事件被包装为一个MotionEvent 2. 描述一个事件的位置(location)     --ACTION_DOWN     --ACTION_UP     --ACTION_MOVE     --ACTION_POINTER_DOWN     --ACTION_POINTER_UP     --ACTION_CANCEL 3.事件的元数...
分类:其他好文   时间:2014-05-18 06:34:46    阅读次数:264
LeetCode: Implement strStr() [027]
【题目】 Implement strStr(). Returns a pointer to the first occurrence of needle in haystack, or null if needle is not part of haystack. 【题意】 实现库函数strStr(), 功能是在字符串haystack中找出目标串needle第一次出现的索引位 【思路】 字符串的匹配,可以用暴力解法,但不推荐。一般使用KMP算法求解。 简要介绍一下KMP的思想: ...
分类:其他好文   时间:2014-05-18 04:10:04    阅读次数:244
【LeetCode】Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类:其他好文   时间:2014-05-18 01:25:07    阅读次数:288
CareerCup之1.8 字符串移位包含问题
【题目】 原文: 1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only one...
分类:其他好文   时间:2014-05-16 01:50:08    阅读次数:311
LeetCode 011 Container With Most Water
【题目】 Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a contain...
分类:其他好文   时间:2014-05-16 01:32:47    阅读次数:406
2003-view-Animation-push
介绍ViewFlipper ViewFlipper Simple ViewAnimator that will animate between two or more views that have been added to it. Only one child is shown at a time. If requested, can automatically flip betwee...
分类:其他好文   时间:2014-05-15 18:37:44    阅读次数:356
[LeetCode] [Add Binary 2012-04-02 ]
Given two binary strings, return their sum (also a binary string).For example, a = "11" b = "1" Return "100".string 的操作,短string补位。两个“0”会输出一个“00”,要特殊处理...
分类:其他好文   时间:2014-05-15 17:47:57    阅读次数:283
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