frequent

Top K Frequent Elements

https://leetcode.com/problems/top-k-frequent-elements/3种方法https://leetcode.com/discuss/100713/3-ways-to-solve-this-problem
丁不想被任何狗咬·2019-11-02 19:55

Top K Frequent Elements

Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].**Note:**Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexi
叶孤陈·2019-11-01 17:49

Top K Frequent Elements

LinktotheproblemDescriptionGivenanon-emptyarrayofintegers,returnthekmostfrequentelements.Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexitymustbebetterthanO(nlogn
邓博文_7c0a·2019-11-01 07:33

Top K Frequent Elements

//347.TopKFrequentElementsGivenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youra
极速魔法·2019-10-31 02:08

Top K Frequent Elements (Java版; Medium)

welcometomyblogLeetCodeTop100LikedQuestions347.TopKFrequentElements(Java版;Medium)题目描述Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Example1:Input:nums=[1,1,1,2,2,3],k=2Output:[1,2]Exam
littlehaes·2019-10-20 21:24

Top K Frequent Elements

一题目Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Example1:Input:nums=[1,1,1,2,2,3],k=2Output:[1,2]Example2:Input:nums=[1],k=1Output:[1]Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqu
bohu83·2019-10-19 13:53

Top K Frequent Elements

Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Example1:Input:nums=[1,1,1,2,2,3],k=2Output:[1,2]Example2:Input:nums=[1],k=1Output:[1]Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueel
caspiansea·2019-09-14 17:31

关于ubuntu软件图标的问题

在Frequent中显示正常，在All中却没有！！！是的，它就是在一边有一边没有。。。奇了怪了。
yellowgg·2019-07-18 09:00

Top K Frequent Words（Map+桶排序）

Givenanon-emptylistofwords,returnthekmostfrequentelements.Youranswershouldbesortedbyfrequencyfromhighesttolowest.Iftwowordshavethesamefrequency,thenthewordwiththeloweralphabeticalordercomesfirst.Examp
did_you·2019-07-10 09:47

LeetCode 347 Top K Frequent Elements

题目Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Example1:Input:nums=[1,1,1,2,2,3],k=2Output:[1,2]Example2:Input:nums=[1],k=1Output:[1]Note:Youmayassumekisalwaysvalid,1≤k≤numberofunique
乌鲁木齐001号程序员·2019-07-07 16:31

FreeSpan算法

paper:https://www.researchgate.net/publication/221654035_FreeSpan_Frequent_pattern-projected_sequential_pattern_miningFreeSpan
很吵请安青争·2019-06-22 23:28

频繁模式(frequent pattern)

Datawhale频繁模式(frequentpattern)频繁模式一般是指频繁地出现在数据集中的模式。这种频繁模式和关联规则是数据挖掘中想要挖掘的知识。我们都知道一个很有趣的故事，就是啤酒和尿布的故事，在某些特定的情况下，“啤酒”与“尿布”两件看上去毫无关系的商品，会经常出现在同一个购物篮中，且大多出现在年轻的父亲身上。分析背后原因是，在美国有婴儿的家庭中，一般是母亲在家中照看婴儿，年轻的父亲去
Datawhale·2019-06-13 21:13

Top K Frequent Elements 根据频率选取topk元素

试题：Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Example1:Input:nums=[1,1,1,2,2,3],k=2Output:[1,2]Example2:Input:nums=[1],k=1Output:[1]Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqu
青盏·2019-03-16 14:15

[LeetCode 508] Most Frequent Subtree Sum （Medium）

Giventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitself).Sowhatisthemostfrequent
灰睛眼蓝·2019-02-09 13:27

leetcode347 Top K Frequent Elements(前K个高频元素)

题目链接:https://leetcode.com/problems/top-k-frequent-elements/知识点：优先队列,详细见我的博客https://blog.csdn.net/CowBoySoBusy
29DCH·2018-11-22 18:46

Most Frequent Subtree Sum

Giventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitself).Sowhatisthemostfrequent
无名_1989·2018-09-07 08:06

leetcode Top K Frequent Elements topK高频元素

Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.betterthanO(nlogn),wherenisthea
acttell·2018-08-28 07:29

【待完善】UVA-11235：Frequent values

Frequentvalues来源：UVA标签：数据结构，RMQ问题参考资料：相似题目：题目Youaregivenasequenceofnintegersa1,a2,...,aninnon-decreasingorder.Inadditiontothat,youaregivenseveralqueriesconsistingofindicesiandj(1≤i≤j≤n).Foreachquery,d
wingrez·2018-08-21 14:10

LeetCode-347：Top K Frequent Elements（取前k个频率最高的元素）

题目：Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.例子:Example:Given[1,1,1,2,2,3]andk=2,return[1,2].Note:*Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.*Youralgorithm’stimecomplex
Never-Giveup·2018-07-17 11:23

Top K Frequent Elements

题目要求Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexi
raledong·2018-05-07 00:00

poj 3368 Frequent values(RMQ)

题目链接给一个单增序列求所给的区间内数字最多的重复次数。思路我一开始想歪了，但是居然还是ac了。mx[i][j]=Max(mx[i][j-1],mx[i+(1#include#include#include#include#include#include#definemem(a,b)memset(a,b,sizeofa)usingnamespacestd;constintmaxn=1e5+5;co
Double丨F·2018-02-12 21:48

Most Frequent Subtree Sum

Giventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitself).Sowhatisthemostfrequent
matrxyz·2018-01-14 07:33

[LeetCode/LintCode] Top K Frequent Words

LeetCodeversionProblemGivenanon-emptylistofwords,returnthekmostfrequentelements.Youranswershouldbesortedbyfrequencyfromhighesttolowest.Iftwowordshavethesamefrequency,thenthewordwiththeloweralphabetica
linspiration·2018-01-07 00:00

Top K Frequent Elements 使用HashMap计数

Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm’stimecomplexitymustbebetterthanO(nlogn),wherenisthearray’ssize.这道题很简单，直接使用HashM
JackZhangNJU·2017-10-02 18:56

Frequent Subsets Problem - 状态压缩-2017 ACM-ICPC 亚洲区（南宁赛区）网络赛

Thefrequentsubsetproblemisdefinedasfollows.SupposeUUU={1,2,…\ldots…,N}istheuniverse,andS1S_{1}S1,S2S_{2}S2,…\ldots…,SMS_{M}SMareMMMsetsoverUUU.Givenapositiveconstantα\alphaα,0=M*α的题解：枚举子集，看其在M个集合中出现的次
lyyy.·2017-09-24 16:49

获取频繁项集和关联规则的Python实现【先验算法】

coding:utf-8-*-#参数设定data_file='F:\\user_match_stat\\itemset.txt'#文件格式csv，形如：item1,item2,item3#每个事务占一行frequent_itemsets_save_file
conggova·2017-08-24 13:49

SPOJ FRQPRIME - Frequent Prime Ranges 二分

题目链接：http://www.spoj.com/problems/FRQPRIME/题目大意：询问[2,N]区间内的包含素数个数至少为K的区间的个数。解题思路：素数个数前缀和+二分。哪儿位大侠有好方法的话希望在评论区说明。代码：1constintinf=0x3f3f3f3f;2constintmaxn=1e6+5;3intsum[maxn];4boolvis[maxn];5intn,k;67vo
EricJeffrey·2017-08-24 09:00

Most Frequent Subtree Sum

原题地址：点我传送指向很明确，就是要用map容器，或者是做哈希表，思想都一样，java这方面还不是很熟，先用的C++来做。首先明确肯定是后序遍历计算sum，然后让sum对应的count++，并与记录最大值的maxCount比较。最后再遍历整个map容器，count==maxCount的就可以放进ans向量里。注意传递要使用按引用传递。C++:/***Definitionforabinarytree
Azure10dai·2017-04-10 23:13

Most Frequent Subtree Sum

问题：Giventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitself).Sowhatisthemostfrequ
Cloudox_·2017-03-15 10:31

Most Frequent Subtree Sum

问题：Giventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitself).Sowhatisthemostfrequ
Cloudox_·2017-03-15 10:31

Most Frequent Subtree Sum

[LeetCode]508.MostFrequentSubtreeSum题目描述思路递归，保存每次的和到map中，同时计算和最多出现的次数思路简单，回顾树的操作代码#include#include#includeusingnamespacestd;structTreeNode{intval;TreeNode*left;TreeNode*right;TreeNode(intx):val(x),lef
charon____·2017-03-10 22:43

Most Frequent Subtree Sum

508.MostFrequentSubtreeSumGiventherootofatree,youareaskedtofindthemostfrequentsubtreesum.Thesubtreesumofanodeisdefinedasthesumofallthenodevaluesformedbythesubtreerootedatthatnode(includingthenodeitsel
柳婼·2017-02-09 15:39

Top K Frequent Elements [medium] (Python)

题目链接https://leetcode.com/problems/top-k-frequent-elements/题目原文Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample
coder_orz·2016-07-30 21:11

B - Frequent values

DescriptionYouaregivenasequenceofnintegersa1,a2,...,aninnon-decreasingorder.Inadditiontothat,youaregivenseveralqueriesconsistingofindicesiandj(1≤i≤j≤n).Foreachquery,determinethemostfrequentvalueamongt
朱仙令·2016-07-28 17:10

成吨提高开发效率：Intellij Shortcuts精简子集与思维模式

在线精简cheatsheet备查表：intellij.linesh.twGithub项目：intellij-mac-frequent-keymapIntellij的快捷键多而繁杂，从官方推荐的keymap
CodeCleaner·2016-07-20 13:29

成吨提高开发效率：Intellij Shortcuts精简子集与思维模式

阅读更多在线精简cheatsheet备查表：intellij.linesh.twGithub项目：intellij-mac-frequent-keymapIntellij的快捷键多而繁杂，从官方推荐的keymap
sodagreen.simplicity·2016-07-20 13:00

成吨提高开发效率：Intellij Shortcuts精简子集与思维模式

阅读更多在线精简cheatsheet备查表：intellij.linesh.twGithub项目：intellij-mac-frequent-keymapIntellij的快捷键多而繁杂，从官方推荐的keymap
sodagreen.simplicity·2016-07-20 13:00

成吨提高开发效率：Intellij Shortcuts精简子集与思维模式

在线精简cheatsheet备查表：intellij.linesh.twGithub项目：intellij-mac-frequent-keymapIntellij的快捷键多而繁杂，从官方推荐的keymap
Linesh·2016-07-20 00:00

[RMQ] [线段树] POJ 3368 Frequent Values

一句话，多次查询区间的众数的次数注意多组数据！！！！RMQ方法：预处理i及其之前相同的数的个数再倒着预处理出i到不是与a[i]相等的位置之前的一个位置，查询时分成相同的一段和不同的一段（RMQ）但是要注意to[i]大于查询范围的情况，以及RMQ时x#include#include#include#include#include#include#include#include#include#inc
ourfutr2330·2016-07-13 21:00

Top K Frequent Elements

TopKFrequentElementclassSolution{public:vectortopKFrequent(vector&nums,intk){unordered_mapmp;for(auton:nums)mp[n]++;vectorres;priority_queue>pq;for(autom:mp){pq.push(make_pair(m.second,m.first));if(pq
Terence_F·2016-07-11 15:35

LeetCode:Top K Frequent Elements

Q:Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexity
leoIsCoding·2016-06-30 21:10

Top K Frequent Elements

先利用map统计各数的个数，再用vector存储统计结果，自定义vector排序classSolution{ public: vectortopKFrequent(vector&nums,intk){ vectorm; if(k>=nums.size())returnnums; mapcnt; for(vector::iteratorit=nums.begin();it!=nums.end();i
xl2432·2016-06-30 15:00

Top K Frequent Elements

/*******************************************************************************Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.**Forexample,*Given[1,1,1,2,2,3]andk=2,return[1,2].**Note:
taoyanqi8932·2016-06-27 14:00

Top K Frequent Elements hashmap+排序求解

  题目链接：https://leetcode.com/problems/top-k-frequent-elements/、347.TopKFrequentElements MySubmissionsQuestionEditorialSolutionTotalAccepted
bruce128·2016-06-16 17:00

Top K Frequent Elements

Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm’stimecomplexitymu
NNNNNNNNNNNNY·2016-06-09 15:00

Top K Frequent Elements（增补4）

题目原文：Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].题目大意：输入一个数组和数字k，求频次最高的k个数字。分析：用hashmap记录频次classSolution{ public: vectortopKFrequent(v
cmershen·2016-05-31 20:00

【leetcode】Top K Frequent Elements

Givenanon-emptyarrayofintegers,returnthekmostfrequentelements.Forexample,Given[1,1,1,2,2,3]andk=2,return[1,2].Note:Youmayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexitymu
Rijkstra·2016-05-31 11:12

[LeetCode] Top K Frequent Elements

ProblemGivenanon-emptyarrayofintegers,returnthekmostfrequentelements.ExampleGiven[1,1,1,2,2,3]andk=2,return[1,2].NoteYoumayassumekisalwaysvalid,1≤k≤numberofuniqueelements.Youralgorithm'stimecomplexity
linspiration·2016-05-30 00:00

LeetCode:Top K Frequent Elements

TopKFrequentElements TotalAccepted: 5045 TotalSubmissions: 11511 Difficulty: MediumGivenanon-emptyarrayofintegers,returnthe k mostfrequentelements.Forexample,Given [1,1,1,2,2,3] andk=2,return [1,2].No
itismelzp·2016-05-19 09:00

leetcode_347 Top K Frequent Elements

题目分析：给定一个数组，返回数组中出现此多最多的k个元素，要求时间复杂度小于O(nlogn)。解题思路：1）利用map实现统计数组中每个元素出现的次数；2）对1）统计的map按照元素出现的次数进行排序，此时需要自己定义一个变量，主要实现将map中元素与次数交换位置；3）依据2）排序的结果，取出排序次数最靠前的k个元素对应的元素值即可。实现程序C++版本//此函数主要实现，将次数放在第一的位置，主要
yzhang6_10·2016-05-12 22:00
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