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HDU - 1394 Minimum Inversion Number (线段树求逆序数)
Description The inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i aj. For a given sequence of numbers a1, a2, ..., an, if we move the ...
分类:其他好文   时间:2014-07-31 13:31:46    阅读次数:229
HDU 4893 线段树的 点更新 区间求和
Wow! Such Sequence!Time Limit: 10000/5000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2067Accepted Submission(s): 61...
分类:其他好文   时间:2014-07-31 12:38:26    阅读次数:310
创建序列以及对应的视图
项目需要保证订单号的唯一 在使用时间生成时发现在业务量比较大的情况下,还是会出现重复情况 解决方案:创建一个序列表和视图 从视图中取 CREATE SEQUENCE general_order_no_seq INCREMENT 1 MINVALUE 1 MAXVALUE 9223372036854775807 START 1 CACHE 1;...
分类:其他好文   时间:2014-07-31 09:50:06    阅读次数:172
hdu-4893-Wow! Such Sequence!-线段树【2014多校第三场-J】
题意:一个初始为0的数组,支持三种操作:1、向第k个数添加d,(|d| 2 #include 3 #include 4 using namespace std; 5 #define maxn 100005 6 #define lson l, m, rt= x - fib[a-1]) re...
分类:其他好文   时间:2014-07-31 02:52:55    阅读次数:254
[LeetCode] Longest Consecutive Sequence(DP)
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example,Given [100, 4, 200, 1, 3, 2], The longes...
分类:其他好文   时间:2014-07-31 02:19:45    阅读次数:243
HDU - 3117 Fibonacci Numbers
Description The Fibonacci sequence is the sequence of numbers such that every element is equal to the sum of the two previous elements, except for the first two elements f0 and f1 which are respect...
分类:其他好文   时间:2014-07-31 00:08:05    阅读次数:281
hdu 4893 Wow! Such Sequence!(线段树功能:单点更新,区间更新相邻较小斐波那契数)
hdu 4893 Wow! Such Sequence!(线段树功能:单点更新,区间更新相邻较小斐波那契数)...
分类:其他好文   时间:2014-07-31 00:04:15    阅读次数:269
HDOJ 4893 Wow! Such Sequence!
题意是这样的,给定一个n个元素的数组,初始值为0,3种操作:1 k d将第k个数增加d;2 l r 询问区间l...r范围内数之和;3 l r 表示将区间l...r内的数变成离他最近的斐波那契数,要求尽量小。线段树操作题目,其中对于第三种操作用一个懒惰标记一下,表示l...r内的数是不是已经变成斐波...
分类:其他好文   时间:2014-07-30 23:31:25    阅读次数:318
UVA 11235 Frequent values(RMQ)
Frequent values          TimeLimit:3000Ms You are given a sequence of n integers a1 , a2 , ... , an in non-decreasing order. In addition to that, you are given several queries consisting of indices...
分类:其他好文   时间:2014-07-30 20:51:23    阅读次数:507
POJ 1141 Brackets Sequence (区间DP)
Description Let us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a regular sequence, then (S) and [S] are both regular sequences....
分类:其他好文   时间:2014-07-30 20:44:34    阅读次数:267
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