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poj2481 Cows
Description Farmer John's cows have discovered that the clover growing along the ridge of the hill (which we can think of as a one-dimensional number line) in his field is particularly good.  Fa...
分类:其他好文   时间:2015-06-03 21:43:24    阅读次数:119
poj3067 Japan
Description Japan plans to welcome the ACM ICPC World Finals and a lot of roads must be built for the venue. Japan is tall island with N cities on the East coast and M cities on the West coast (M <...
分类:其他好文   时间:2015-06-03 21:38:18    阅读次数:143
hdu 1394 Minimum Inversion Number 线段树 点更新
// hdu 1394 Minimum Inversion Number 线段树 点更新 // // 典型线段树的单点更新 // // 对于求逆序数,刚开始还真的是很年轻啊,裸的按照冒泡排序 // 求出最初始的逆序数,然后按照公式递推,结果就呵呵了 // // 发现大牛都是用线段树和树状数组之类的做的,而自己又在学 // 线段树,所以就敲了线段树。 // // 线段树的节点保存一段区间( L,R ...
分类:其他好文   时间:2015-06-03 21:36:28    阅读次数:115
poj2299 Ultra-QuickSort
Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping two adjacent sequence elements until the seque...
分类:其他好文   时间:2015-06-03 15:48:26    阅读次数:108
hdu2227---Find the nondecreasing subsequences(dp+树状数组)
Problem Description How many nondecreasing subsequences can you find in the sequence S = {s1, s2, s3, …., sn} ? For example, we assume that S = {1, 2, 3}, and you can find seven nondecreasing subseque...
分类:编程语言   时间:2015-06-02 22:08:26    阅读次数:141
树状数组--求逆序对-离散化
1 #include 2 #include 3 #include 4 #include 5 #define ll long long 6 #define MAX 500005 7 using namespace std; 8 9 struct Node10 {11 int val,po...
分类:编程语言   时间:2015-06-02 17:43:33    阅读次数:117
树状数组--前n项和;
树状数组是和线段树类似的数据结构,基本上树状数组可以做的线段树都可以做;树状数组就是一个数组,在信息记录上有一些特点,以动态求前n项和为例:可以改变数组的某一个元素,求前n项和;数组tree[ i ]记录的是A[ i - lowbit ( i )+1]~A[ i ]的和,lowbit(i),表示i的...
分类:编程语言   时间:2015-06-02 13:08:07    阅读次数:117
poj 2299 逆序数
树状数组,逆序数,poj,poj 2299,归并求逆序数
分类:其他好文   时间:2015-06-02 09:16:57    阅读次数:172
HDU ACM 5249 KPI->树状数组+二分
分析:注意队列中保存的是排序后数组中的下标。树状数组也是根据下标进行处理。 #include #include #include using namespace std; #define N 10005 int c[N<<2]; int n,a[N],b[N]; char str[N][10]; int lowbit(int x) { return x&(-x); } voi...
分类:编程语言   时间:2015-06-01 22:52:25    阅读次数:191
[Java]Swing树状组件JTree
一 简单样式TreeNodeDemo.javapackage com.sjf;import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.event.TreeSelectionEvent; import javax.swing.event.TreeSelectionListener; import javax.swi...
分类:编程语言   时间:2015-05-31 23:23:40    阅读次数:173
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