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判断集合是否为空 、 工具类
/** * 判断集合是否为空 * * @param list * 集合 */ public static boolean isEmpty(List list) { if (list != null && list.size() > 0) { return false; } else { return ...
分类:其他好文   时间:2016-09-21 11:33:09    阅读次数:107
LeetCode 387. First Unique Character in a String
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may assume the ...
分类:其他好文   时间:2016-09-21 06:46:53    阅读次数:118
LeetCode 383. Ransom Note
Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans ...
分类:其他好文   时间:2016-09-21 01:47:19    阅读次数:186
PHP实现求阶乘
functionfactorial($x) { if($x>1){ $s=$x*factorial($x-1); }else{ $s=$x; } return$s; } $x=100; echo$x."的阶乘的为".factorial($x);
分类:Web程序   时间:2016-09-21 00:13:04    阅读次数:334
LeetCode 371. Sum of Two Integers
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example:Given a = 1 and b = 2, return 3. 题目要求:计算两个整型的和 ...
分类:其他好文   时间:2016-09-21 00:07:10    阅读次数:105
LeetCode 345. Reverse Vowels of a String
Write a function that takes a string as input and reverse only the vowels of a string. Example 1:Given s = "hello", return "holle". Example 2:Given s ...
分类:其他好文   时间:2016-09-20 23:56:48    阅读次数:142
LeetCode 349. Intersection of Two Arrays
Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element i ...
分类:其他好文   时间:2016-09-20 23:52:22    阅读次数:143
LeetCode 350. Intersection of Two Arrays II
Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2, 2]. Note: Each elemen ...
分类:其他好文   时间:2016-09-20 23:49:46    阅读次数:135
LeetCode 342. Power of Four
Given an integer (signed 32 bits), write a function to check whether it is a power of 4. Example:Given num = 16, return true. Given num = 5, return fa ...
分类:其他好文   时间:2016-09-20 22:28:24    阅读次数:190
Oracle函数
--函数 functioncreate or replace function fn_teacher_tid(f_tid char --用户传递的参数)return char --返回值的类型is --声明返回值f_result teacher.tid%type;begin if length(f_ ...
分类:数据库   时间:2016-09-20 21:25:39    阅读次数:165
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