Given an integer array, heapify it into a min-heap array. For a heap array A, A[0] is the root of heap, and for each A[i], A[i * 2 + 1] is the left child of A[i] and A[i * 2 + 2] is the right child of A[i]. Example Given [3,2,1,4,5], return [1,2,3,4,…

My first try was, using partial sort to figure out numbers layer by layer in the heap.. it only failed with TLE with the last test case. The problem is, partial sort cannot guaratee O(n) every time. class Solution { void kth(vector<int> &A, int…

Singleton is a most widely used design pattern. If a class has and only has one instance at every moment, we call this design as singleton. For example, for class Mouse (not a animal mouse), we should design it in singleton. You job is to implement a…

// -------------------------------------------------------------------------------------------------------------------- // <copyright file="Program.cs" company="Chimomo's Company"> // // Respect the work. // // </copyright>…

Python数据结构常用模块:collections.heapq.operator.itertools heapq 堆是一种特殊的树形结构,通常我们所说的堆的数据结构指的是完全二叉树,并且根节点的值小于等于该节点所有子节点的值                                                      常用方法 heappush(heap,item) 往堆中插入一条新的值 heappop(heap) 从堆中弹出最小值 heapreplace(heap,item) 从…

转自:http://www.cnblogs.com/jiayy/p/3475544.html 偶然中发现,下面的两端代码表现不一样 void main(){ void* p1 = malloc(32);       free(p1); free(p1); // 这里会报double free 错误,程序退出 } void main(){ void* p1 = malloc(32); void* p2 = malloc(32); free(p1); free(p2); free(p1); // 正…

偶然中发现,下面的两端代码表现不一样 void main(){ void* p1 = malloc(32);       free(p1); free(p1); // 这里会报double free 错误,程序退出 } void main(){ void* p1 = malloc(32); void* p2 = malloc(32); free(p1); free(p2); free(p1); // 正常没有报错 free(p2);//正常,没有报错 ... } 我就开始疑惑,难道glibc m…

.cordll -ve -u -l //reload core dlls ------加载下载系统文件符号的URL---------- .sympath SRV*C:\Symbols*http://msdl.microsoft.com/download/symbols ---------加载.net组件------- --------------- .loadby sos clr .load psscor4 -----------------Memory查看-------------------…

在本机上装的CentOS 5.5 虚拟机, 软件准备:jdk 1.6 U26 hadoop:hadoop-0.20.203.tar.gz ssh检查配置 [root@localhost ~]# ssh-keygen -t  rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'. Enter…

题目: 有N个长度不一的数组,所有的数组都是有序的,请从大到小打印这N个数组整体最大的前K个数. 例如: 输入含有N行元素的二维数组代表N个一维数组. 219,405,538,845,971 148,558 52,99,348,691 再输入整数K=5,则打印: Top 5:971,845,961,558,538. 要求: 1.如果所有数组的元素个数小于K,则从小到大打印所有的数. 2.时间复杂度为O(KlogN). 解答: 利用堆结构和堆排序完成. import java.util.Array…