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iOS经典面试题
iOS经典面试会问到的一些问题:自己经过半个多月为大家整理出来的,有的答案不是唯一的! 1、 简述OC中内存管理机制。与retain配对使用的方法是dealloc还是release,为什么?需要与alloc配对使用的方法是dealloc还是release,为什么?readwrite,readonly,assign,retain,copy,nonatomic 、atomic、strong、...
分类:移动开发   时间:2015-03-05 17:12:57    阅读次数:282
iOS const的使用
1. const经典面试题 1> const int age1 = 21; age1 = 100; // 编译报错 2> int const age2 = 22; 3> constint *age3 = 23; int val1 = 101; *age3 = val1; ...
分类:移动开发   时间:2015-03-05 16:48:30    阅读次数:159
[LeetCode]132.Palindrome Partitioning II
题目Given a string s, partition s such that every substring of the partition is a palindrome.Return the minimum cuts needed for a palindrome partitioning of s.For example, given s = “aab”, Return 1 sinc...
分类:其他好文   时间:2015-03-02 23:58:14    阅读次数:368
[LeetCode]131.Palindrome Partitioning
题目Given a string s, partition s such that every substring of the partition is a palindrome.Return all possible palindrome partitioning of s.For example, given s = “aab”, Return[ [“aa”,”b”],...
分类:其他好文   时间:2015-03-02 22:35:33    阅读次数:149
[LeetCode]90.Subsets II
题目Given a collection of integers that might contain duplicates, S, return all possible subsets.Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate...
分类:其他好文   时间:2015-03-01 22:22:10    阅读次数:226
C# 3个线程A B C 依次打印123123123..
C#经典面试题:有3个线程,A线程打印1,B线程打印2,C线程打印3,请用程序实现依次打印123123123... 1 class Program 2 { 3 static void Main(string[] args) 4 { 5 ...
分类:编程语言   时间:2015-03-01 22:20:27    阅读次数:136
[LeetCode]72.Edit Distance
题目Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.)You have the following 3 operations permitted on a word:a)...
分类:其他好文   时间:2015-03-01 13:18:01    阅读次数:124
[LeetCode]55.Jump Game
题目Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximum jump length at that position.Determine if you a...
分类:其他好文   时间:2015-02-28 23:05:45    阅读次数:276
[LeetCode]189.Rotate Array
题目Rotate an array of n elements to the right by k steps.For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].Note: Try to come up as many solutions as you can, th...
分类:其他好文   时间:2015-02-25 23:46:18    阅读次数:157
[LeetCode]76.Minimum Window Substring
题目Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For example, S = “ADOBECODEBANC” T = “ABC” Minimum window is “BANC”.Note...
分类:Windows程序   时间:2015-02-24 13:48:53    阅读次数:210
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