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Enum和typedef
【枚举类型】 使用emum关键字创建枚举。 // 定义一个枚举,用来表示方向enum Direction{ up, down, middle, left, right};枚举的值都可以用数字表示,默认从零开始递增 enum Direction direction = up ;// 输出0 NSLog...
分类:编程语言   时间:2015-01-25 17:55:53    阅读次数:172
CSS绘制三角形的原理剖析
今天学习Bootstrap时候,看到按钮的向下三角形源码: .caret { display: inline-block; width: 0; height: 0; margin-left: 2px; vertical-align: middle; border-top: 4px solid; border-right: 4px solid transparent...
分类:Web程序   时间:2015-01-23 13:24:48    阅读次数:117
【leetcode】Permutations II (middle)
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
分类:其他好文   时间:2015-01-21 22:16:01    阅读次数:290
【leetcode】Combination Sum (middle)
Given a set of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Thesamerepeated num...
分类:其他好文   时间:2015-01-21 14:53:00    阅读次数:110
【leetcode】Combinations (middle)
Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2,3],...
分类:其他好文   时间:2015-01-20 23:39:07    阅读次数:255
【leetcode】Convert Sorted List to Binary Search Tree (middle)
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.思路:题目看上去好像很难,但实际上很简单,递归做就行,每次找到左右子树对应的子链表...
分类:其他好文   时间:2015-01-18 21:03:17    阅读次数:241
【leetcode】Insertion Sort List (middle)
Sort a linked list using insertion sort.思路:用插入排序对链表排序。插入排序是指每次在一个排好序的链表中插入一个新的值。注意:把排好序的部分和未排序的部分完全分开,指针不要有交叉。 即不会通过->next 重叠class Solution {public: ....
分类:其他好文   时间:2015-01-18 19:45:01    阅读次数:162
【leetcode】Add Two Numbers(middle) ☆
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2015-01-17 22:12:46    阅读次数:168
【leetcode】Binary Tree Zigzag Level Order Traversal (middle)
Given a binary tree, return thezigzag level ordertraversal of its nodes' values. (ie, from left to right, then right to left for the next level and al...
分类:其他好文   时间:2015-01-17 17:58:07    阅读次数:199
POJ 2253 Frogger (dijkstra算法 + 预处理)
Frogger Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 27020   Accepted: 8797 Description Freddy Frog is sitting on a stone in the middle of a lake. Sud...
分类:编程语言   时间:2015-01-16 16:49:44    阅读次数:208
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