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Swift的一些问题
一些Swift的问题列表:How to use a Objective-C #define from SwiftHow do I convert an NSDictionary to a Swift Dictionary?Swift: 'var' declaration without getter...
分类:其他好文   时间:2014-07-14 23:20:20    阅读次数:205
[LeetCode] Reorder List
Given a singly linked list L: L0→L1→…→Ln-1→Ln, reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→…You must do this in-place without altering the nodes' values.For ...
分类:其他好文   时间:2014-07-14 19:33:04    阅读次数:215
Linked List Cycle
Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? /** * Definition for singly-linked list. * class ListNode { * int val; * ...
分类:其他好文   时间:2014-07-13 16:32:04    阅读次数:152
LeetCode——Reorder List
Given a singly linked list L: L0→L1→…→Ln-1→Ln, reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→… You must do this in-place without altering the nodes' values. For example, Given {1,2,3,4}, reorder it t...
分类:其他好文   时间:2014-07-10 20:43:37    阅读次数:210
【LeetCode】Linked List Cycle
题目 Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 解答 首先要注意空链表不成环;不能开额外的空间,即空间复杂度是o(1),可采用“快慢指针”查检查链表是否含有环,如果在快的指针能够追上慢的指针,则有环,否...
分类:其他好文   时间:2014-07-08 19:17:47    阅读次数:160
【leetcode刷题笔记】Linked List Cycle II
Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?判断一...
分类:其他好文   时间:2014-07-06 18:10:33    阅读次数:145
Divide Two Integers
Divide two integers without using multiplication, division and mod operator.思路:不能使用乘法除法以及取模运算来计算两个数相除。主要做法就是,将因子不断乘2(向左移位即可实现),同时结果从1不断移位加倍,等到除数大于被除数一...
分类:其他好文   时间:2014-07-06 15:34:24    阅读次数:197
Leetcode Divide Two Integers
Divide two integers without using multiplication, division and mod operator.不用乘、除、求余操作,返回两整数相除的结果,结果也是整数。假设除数是2,相除的商就是被除数二进制表示向右移动一位。假设被除数是a,除数是b,因为不知...
分类:其他好文   时间:2014-07-05 20:37:18    阅读次数:193
LeetCode——Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could negative integers be palindromes? (ie, -1) If you are thinking of converting the integer to string...
分类:其他好文   时间:2014-07-05 10:44:29    阅读次数:227
ios 第三方qq登陆 {"ret":100030,"msg":"this api without user authorization"}
ios 第三方qq登陆 {"ret":100030,"msg":"this api without user authorization"}...
分类:移动开发   时间:2014-07-03 18:05:35    阅读次数:879
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