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largest
Largest
BST Subtree
Givenabinarytree,findthelargestsubtreewhichisaBinarySearchTree(BST),wherelargestmeanssubtreewithlargestnumberofnodesinit.Note:Asubtreemustincludeallofitsdescendants.Here'sanexample:10/\515/\\187TheLar
sherwin29
·
2019-12-23 09:43
Largest
Number(最大数)
问题Givenalistofnonnegativeintegers,arrangethemsuchthattheyformthelargestnumber.NoticeTheresultmaybeverylarge,soyouneedtoreturnastringinsteadofaninteger.Haveyoumetthisquestioninarealinterview?YesExample
天街孤独
·
2019-12-22 09:52
Largest
Rectangle in Histogram
Given*n*non-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Belowisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].T
怪味儿果叔
·
2019-12-21 01:57
Kth
Largest
Element in an Array
Findthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedorder,notthekthdistinctelement.Forexample,Given[3,2,1,5,6,4]andk=2,return5.Note:Youmayassumekisalwaysvalid,1?k?arra
Jeanz
·
2019-12-21 00:13
LeetCode 84 [
Largest
Rectangle in Histogram]
原题给出的n个非负整数表示每个直方图的高度,每个直方图的宽均为1,在直方图中找到最大的矩形面积。给出height=[2,1,5,6,2,3],返回10(5*2)解题思路DP一般是把n!/nn/2n优化到n2/n3,而本题暴力解法是n^2,我们希望优化到n,不是DP的强项n^2->n(stack强项)求出把每个柱子当做最小的得到的面积->求出n个值,取min通过维护一个升序stack,实现->找到每
Jason_Yuan
·
2019-12-20 11:56
Largest
Rectangle in Histogram
https://leetcode.com/problems/
largest
-rectangle-in-histogram/栈里面存的是每个元素之前的那个元素是左边离它最近的比它小的。
丁不想被任何狗咬
·
2019-12-19 12:11
Find
Largest
Value in Each Tree Row
寻找二叉树每层的最大值,递归先序遍历的方法实现,利用一个vector保存每层的最大值。/***Definitionforabinarytreenode.*structTreeNode{*intval;*TreeNode*left;*TreeNode*right;*TreeNode(intx):val(x),left(NULL),right(NULL){}*};*/classSolution{vec
wshxj123
·
2019-12-19 03:50
LargestNumber_179
https://leetcode.com/problems/
largest
-number/image.png(图片来源https://leetcode.com/problems/
largest
-number
7ccc099f4608
·
2019-12-18 23:38
Largest
Divisible Subset
Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine.Example1:image.pngExa
六尺帐篷
·
2019-12-17 23:28
Kth
Largest
Element in an Array(第K大数)
Findthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedorder,notthekthdistinctelement.Forexample,Given[3,2,1,5,6,4]andk=2,return5.该题可以使用基于快速排序分治思想来解决这个问题。第k大数可以等价为第m=nums
风起天蓝
·
2019-12-17 10:43
Largest
Divisible Subset
Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine.Example1:nums:[1,2,3]
Jeanz
·
2019-12-17 00:09
heapq( Heap queue algorithm)库
nlargest(n,iterable)前n个最大的,nsmallest(n,iterable)前n个最小的importheapqnums=[1,23,32,45,67,21,78,12]print("3
largest
RobbieZhu
·
2019-12-15 15:08
1094 The
Largest
Generation (25 分)
Afamilyhierarchyisusuallypresentedbyapedigreetreewhereallthenodesonthesamelevelbelongtothesamegeneration.Yourtaskistofindthegenerationwiththelargestpopulation.InputSpecification:Eachinputfilecontainso
W杂货铺W
·
2019-12-15 06:16
Find
Largest
Value in Each Tree Row
DescriptionYouneedtofindthelargestvalueineachrowofabinarytree.Example:Input:treeOutput:[1,3,9]SolutionBFS,timeO(n),spaceO(n)/***Definitionforabinarytreenode.*publicclassTreeNode{*intval;*TreeNodeleft;
Nancyberry
·
2019-12-14 19:18
Leetcode -
Largest
Divisible Subset
Mycode:importjava.util.ArrayList;importjava.util.Arrays;importjava.util.HashMap;importjava.util.List;publicclassSolution{publicListlargestDivisibleSubset(int[]nums){Listret=newArrayList();if(nums==nul
Richardo92
·
2019-12-14 19:49
Largest
Rectangle in Histogram
原题地址https://leetcode.com/problems/
largest
-rectangle-in-histogram/description/题意给出一个vector表示直方图,找出直方图里最大的矩形
岛上痴汉
·
2019-12-13 06:54
Largest
Rectangle in Histogram
文章作者:Tyan博客:noahsnail.com|CSDN|1.DescriptionLargestRectangleinHistogram2.SolutionO(N^2)classSolution{public:intlargestRectangleArea(vector&heights){intmaxArea=0;for(inti=0;i=0;left--){if(heights[left]
SnailTyan
·
2019-12-12 13:50
Find
Largest
Value in Each Tree Row
Youneedtofindthelargestvalueineachrowofabinarytree.Solution1:DFS思路:TimeComplexity:O(N)SpaceComplexity:O(N)递归缓存Solution2:BFS思路:TimeComplexity:O(N)SpaceComplexity:O(N)Solution1Code:publicclassSolution{p
sherwin29
·
2019-12-12 12:22
Largest
Divisible Subset
Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine.Example1:nums:[1,2,3]
billyzhang
·
2019-12-12 00:32
Largest
Divisible Subset
Givenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine.Example1:nums:[1,2,3]
exialym
·
2019-12-08 06:32
515 Find
Largest
Value in Each Tree Row
/***Definitionforabinarytreenode.*structTreeNode{*intval;*structTreeNode*left;*structTreeNode*right;*};*/intheight(structTreeNode*node){if(node==NULL)return0;intl=height(node->left);intr=height(node->
larrymusk
·
2019-12-08 00:19
Largest
Rectangle in Histogram
image.pngimportjava.util.Stack;classSolution{publicintlargestRectangleArea(int[]height){Stackst=newStack();intres=0;int[]a=newint[height.length+1];for(inti=0;i=a[i]){intidx=st.pop();intwidth=i-(st.isE
GoDeep
·
2019-12-07 01:50
C++中的优先队列
优先队列具有最高级先出(
largest
-in,first-out)的行为特征。
NLP小学生
·
2019-12-06 18:59
六种简单易理解的排序算法
:dp,贪心等等方法:排序,搜索等等本篇主要介绍: 排序借助leetcode的215题介绍六种常见好理解的排序思想import java.util.Arrays;/** * Find the kth
largest
小傻孩丶儿
·
2019-12-02 16:00
Kth
Largest
Element in an Array
原题地址:https://leetcode.com/problems/kth-
largest
-element-in-an-array/description/题目描述215.KthLargestElementinanArrayFindthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedor
岛上痴汉
·
2019-12-02 09:24
Largest
Divisible Subset
QuestionGivenasetofdistinctpositiveintegers,findthelargestsubsetsuchthateverypair(Si,Sj)ofelementsinthissubsetsatisfies:Si%Sj=0orSj%Si=0.Iftherearemultiplesolutions,returnanysubsetisfine.Example1:nums
FlynnLWang
·
2019-12-02 03:08
Kth
Largest
Element in an Array
Findthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedorder,notthekthdistinctelement.Forexample,Given[3,2,1,5,6,4]andk=2,return5.Note:Youmayassumekisalwaysvalid,1≤k≤arra
sherwin29
·
2019-12-01 16:49
Largest
Rectangle in Histogram
题目描述首先,可以使用暴力破解法,以每一个数字作为高度,随后遍历找出长度,最后进行大小的匹配即可,但是由于是O(n^2)复杂度,肯定过不了LeetCode的OJ,随后参照网上的过程进行优化处理。对于任意一个barn,我们得到的包含该barn的矩形区域里面barn是最小的。我们使用ln和rn来表示barn向左以及向右第一个小于barn的bar的索引位置。譬如题目中的bar2的高度为5,它的ln为1,
胡家六少爷
·
2019-11-30 19:30
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
蓝眼睛灰
·
2019-11-30 12:51
【LEETCODE】模拟面试-84-
Largest
Rectangle in Histogram
题目:https://leetcode.com/problems/
largest
-rectangle-in-histogram/Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1
不会停的蜗牛
·
2019-11-30 07:52
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
ShutLove
·
2019-11-29 20:27
Kth
Largest
Element in a Stream 总结一下python heap操作
通过这道题复习一下pythonheap操作:importheapqpython里面heapq用list实现的是最小堆,也就是每次pop()出来的是最小的数字。有以下method:q=[]heappush(q,item)heappop(q)#如果只想看一下最小的不取出来,则用q[0]即可heappushpop(q,item)#先push再popheapify(q)#Transformlistxint
woniudear
·
2019-11-29 10:42
Largest
Divisible Subset
题目来源求最大的可整除子集,就是子集中任意一对元素都是倍数关系。我主要利用dp来记录最大值,然后利用pre来记录对应最大值的上一个元素。代码如下:classSolution{public:vectorlargestDivisibleSubset(vector&nums){sort(nums.begin(),nums.end());intlen=nums.size();vectorres;if(le
我叫胆小我喜欢小心
·
2019-11-29 10:54
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
Jeanz
·
2019-11-28 01:37
Largest
Number At Least Twice of Others
题目Inagivenintegerarraynums,thereisalwaysexactlyonelargestelement.Findwhetherthelargestelementinthearrayisatleasttwiceasmuchaseveryothernumberinthearray.Ifitis,returntheindexofthelargestelement,otherwi
miltonsun
·
2019-11-28 00:22
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
xxx亦凡桑
·
2019-11-27 17:41
Split Array
Largest
Sum
DescriptionGivenanarraywhichconsistsofnon-negativeintegersandanintegerm,youcansplitthearrayintomnon-emptycontinuoussubarrays.Writeanalgorithmtominimizethelargestsumamongthesemsubarrays.Note:Ifnisthele
何睿
·
2019-11-17 08:40
python
【题解】hdu1506
Largest
Rectangle in a Histogram
目录题目思路\(Code\)题目LargestRectangleinaHistogram思路单调栈。不知道怎么描述所以用样例讲一下。72145133最大矩形的高度一定是给你的高度中的一个。我们枚举最大高度。很明显以某一高度为高的矩形的左边界是该高度左边第一个比它矮的。右边界类似。我们可以用单调栈去维护每一个高度左右第一个比他矮的位置即可\(Code\)#include#include#includ
yu__xuan
·
2019-11-11 22:00
Find
Largest
Value in Each Tree Row
Youneedtofindthelargestvalueineachrowofabinarytree.Example:Input:1/\32/\\539Output:[1,3,9]Solution1:DFS深度优先,建立一个resultlinked数组,index(level)上存的就是当前index(level)行的Max值,linked数组随着level扩大TimeComplexity:O(N
sherwin29
·
2019-11-08 14:59
Kth
Largest
Element in an Array解题报告
Description:Findthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedorder,notthekthdistinctelement.Note:Youmayassumekisalwaysvalid,1&nums,intk){returnhelper(nums,0,nums.si
黑山老水
·
2019-11-07 15:25
Largest
Rectangle in Histogram
classSolution(object):deflargestRectangleArea(self,heights):""":typeheights:List[int]:rtype:int"""#O(n)solution#foreachrectangle,calculatethemaxareaformedwithitsheighth(withhbeingthesmallestrectangle)
阿团相信梦想都能实现
·
2019-11-06 03:23
Find
Largest
Value in Each Tree Row
仍然是BFS的变式。classSolution{publicListlargestValues(TreeNoderoot){Listresult=newArrayListqueue=newArrayDequemax)max=node.val;if(node.left!=null)queue.add(node.left);if(node.right!=null)queue.add(node.righ
misleadingrei
·
2019-11-06 00:27
Largest
Rectangle in Histogram
Givennnon-negativeintegersrepresentingthehistogram'sbarheightwherethewidthofeachbaris1,findtheareaoflargestrectangleinthehistogram.Aboveisahistogramwherewidthofeachbaris1,givenheight=[2,1,5,6,2,3].The
juexin
·
2019-11-05 13:02
Find
Largest
Value in Each Tree Row
Medium考BinaryTreeLevelOrderTraversal,简单秒./***Definitionforabinarytreenode.*publicclassTreeNode{*intval;*TreeNodeleft;*TreeNoderight;*TreeNode(intx){val=x;}*}*/classSolution{publicListlargestValues(Tre
greatfulltime
·
2019-11-03 21:26
Leetcode -
Largest
Rectangle in Histogram
Question:Paste_Image.pngMycode:importjava.util.Stack;publicclassSolution{publicintlargestRectangleArea(int[]height){if(height==null||height.length==0)return0;intcount=height.length;int[]area=newint[co
Richardo92
·
2019-11-02 09:36
LeetCode 813. 最大平均值和的分组(C#实现)——动态规划
一、问题https://leetcode-cn.com/problems/
largest
-sum-of-averages/solution/我们将给定的数组A分成K个相邻的非空子数组,我们的分数由每个子数组内的平均值的总和构成
落花流水Zxxxx
·
2019-11-01 16:00
Leetcode -
Largest
Number
Mycode:importjava.util.ArrayList;importjava.util.Collections;importjava.util.Comparator;publicclassSolution{publicStringlargestNumber(int[]nums){if(nums==null||nums.length==0)returnnull;ArrayListnum=n
Richardo92
·
2019-11-01 07:30
Find
Largest
Value in Each Tree Row
Youneedtofindthelargestvalueineachrowofabinarytree.Example:Input:1/\32/\\539Output:[1,3,9]这题是BFS典型套路了,调试了几次过了。注意rowMax=Integer.MIN_VALUE;不要漏了。publicclassSolution{publicListlargestValues(TreeNoderoot){
DrunkPian0
·
2019-11-01 02:18
Kth
Largest
Element in an Array
desciption:Findthekthlargestelementinanunsortedarray.Notethatitisthekthlargestelementinthesortedorder,notthekthdistinctelement.Input:[3,2,1,5,6,4]andk=2Output:5解法一:排序:时间复杂度O(NlogN),空间复杂度O(1)publicstat
Shen
·
2019-10-22 00:00
java
leetcode
Largest
Palindrome Product
题目要求Findthelargestpalindromemadefromtheproductoftwon-digitnumbers.Sincetheresultcouldbeverylarge,youshouldreturnthelargestpalindromemod1337.**Example:**Input:2Output:987Explanation:99x91=9009,9009%133
raledong
·
2019-10-15 05:08
leetcode
java
math
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