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【POJ2155】【二维树状数组】Matrix
DescriptionGiven an N*N matrix A, whose elements are either 0 or 1. A[i, j] means the number in the i-th row and j-th column. Initially we have A[i, j...
分类:编程语言   时间:2015-03-07 13:40:34    阅读次数:157
LeetCode --- 53. Maximum Subarray
题目链接:Maximum Subarray Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [?2,1,?3,4,?1,2,1,?5,4], the contiguous s...
分类:其他好文   时间:2015-03-07 11:38:51    阅读次数:198
LeetCode --- 52. N-Queens II
题目链接:N-Queens II Follow up for N-Queens problem. Now, instead outputting board configurations, return the total number of distinct solutions. 这道题的要求是返回N皇后问题总共有多少不同情况。 和N-Queens问题一样,同样的思路,至少这个是统计数量...
分类:其他好文   时间:2015-03-07 11:38:06    阅读次数:132
Letter Combinations of a Phone Number
Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. Input:Digit string...
分类:其他好文   时间:2015-03-07 01:02:15    阅读次数:210
Oracle的隐式转换
都说Oracle存在NUMBER和VARCHAR2类型的隐式转换,严格意义上需要避免,但为何需要避免,从下面的实验进行验证。 1. 创建测试表和索引 create table tn (id number, name varchar2(1)); create index idx_tn on tn (id); create index idx_tn on tn (name); 分别对NU...
分类:数据库   时间:2015-03-06 20:49:31    阅读次数:178
HDU3555 Bomb(数位dp)
Problem Description The counter-terrorists found a time bomb in the dust. But this time the terrorists improve on the time bomb. The number sequence of the time bomb counts from 1 to N. If the curren...
分类:其他好文   时间:2015-03-06 19:15:02    阅读次数:145
hdu1394Minimum Inversion Number树状数组求逆序对水题
//ans[i]=ans[i-1]+(n+1)-2*num[i] //num[i]为输入时的数据 //ans[i]为m=i时的逆序数 //用树状数组求ans[0]的逆序对 #include #include #include using namespace std; const int maxn=5010; int num[maxn]; int tree[maxn]; int...
分类:编程语言   时间:2015-03-06 19:07:36    阅读次数:165
JQuery中$.ajax()方法参数详解
url: 要求为String类型的参数,(默认为当前页地址)发送请求的地址。type: 要求为String类型的参数,请求方式(post或get)默认为get。注意其他http请求方法,例如put和delete也可以使用,但仅部分浏览器支持。timeout: 要求为Number类型的参数,设置请求超...
分类:Web程序   时间:2015-03-06 18:27:52    阅读次数:122
lua学习笔记(1)
基本数据类型 nil?boolean?number?string?userdata?function?thread?table --将一个全局变量复制为nil?即等价于删除该变量 函数?string?type()返回参数类型 nil为false?其他为true print("10"...
分类:其他好文   时间:2015-03-06 17:32:56    阅读次数:129
【leetcode】Gray Code
The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number...
分类:其他好文   时间:2015-03-06 15:34:13    阅读次数:153
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