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intersection
leetcode_c++:哈希:
intersection
of Two Arrays(349)
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].求两个数组的交集,元素不能重复。算法setclassSolution{public:vectorintersection(vector&nums1,vector&nums2){sets1
LandscapeMi
·
2020-06-24 14:08
leetcode(c++)
Intersection
of Two Arrays II(easy)
350.IntersectionofTwoArraysII(easy)Giventwoarrays,writeafunctiontocomputetheirintersection.Example1:Input:nums1=[1,2,2,1],nums2=[2,2]Output:[2,2]Example2:Input:nums1=[4,9,5],nums2=[9,4,9,8,4]Output:[4
momottyy
·
2020-06-24 13:17
leetcode
python
Intersection
of Two Arrays II 解题报告
题目:Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultcanbein
魔豆Magicbean
·
2020-06-24 13:01
IT公司面试习题
leetcode题解-349.
Intersection
of Two Arrays && 350.
Intersection
of Two Arrays II
349.Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Note:Eachelementintheresultmustbeunique.其实就是求两个数组的公共子集。思路一:使用两个HashSet,一个用于存储结果,另一个用于将其中一
liuchongee
·
2020-06-24 06:49
leetcode刷题
Intersection
of Two ArraysI/II题解
IntersectionofTwoArraysIhttps://leetcode.com/problems/
intersection
-of-two-arrays/这道题不是很难,我用unordered_set
lynne233
·
2020-06-24 05:47
数据结构和算法
LintCode-
Intersection
of Arrays
给出多个数组,求它们的交集。输出他们交集的大小。注意事项输入的所有数组元素总数不超过500000。题目数据每个数组里的元素没有重复。题目不写数据规模,还以为是什么没见过的算法,结果用set查找就行。不用stl自己写的话估计要做个二叉搜索树什么的。classSolution{public:/***@paramarrs:thearrays*@return:thenumberoftheintersect
insidel
·
2020-06-24 05:23
c++
lintcode
Intersection
LCCI
面试题16.03.IntersectionLCCIGiventwostraightlinesegments(representedasastartpointandanendpoint),computethepointofintersection,ifany.Ifthere'snointersection,returnanemptyarray.Theabsoluteerrorshouldnotexc
lemonade13
·
2020-06-24 03:09
todo
code
c++
C++学习笔记——set_
intersection
计算两个字符串交集
我们先看一下set_
intersection
的官方文件模板templateOutputItset_
intersection
(InputIt1first1,InputIt1last1,InputIt2first2
不会做甜点的程序员不是好艺术家
·
2020-06-24 02:30
C++编程学习
C++学习笔记
集合类型内建方法总结
=t而且t中所有的元素都是s的成员s.union(t)s|t合并操作:s"或"t中的元素s.
intersection
(t)s&t交集操作:s"与"t中的元素s.differences-t差分操作:在s中存在
破渔网兜兜
·
2020-06-24 01:04
python知识点和实例
Python :compute two arrays‘
intersection
Giventwoarrays,writeafunctiontocomputetheirintersection.给定两个数组,编写一个函数来计算它们的交集。EX1:Input:nums1=[1,2,2,1],nums2=[2,2]Output:[2,2]EX2:Input:nums1=[4,9,5],nums2=[9,4,9,8,4]Output:[4,9]Note:Eachelementinth
kidpea_lau
·
2020-06-24 01:34
Python
Algorithms
检测评价函数(
intersection
-over-union, IOU)
在目标检测的评价体系中,有一个参数叫做IoU,简单来讲就是模型产生的目标窗口和原来标记窗口的交叠率。具体我们可以简单的理解为:即检测结果(DetectionResult)与GroundTruth的交集比上它们的并集,即为检测的准确率IoU:IoU=(DR⋂GT)/(DR⋃GT)如下图所示:GT=GroundTruth;DR=DetectionResult;红色边框框起来的是:GT⋂DR是GT和DR
__Mr-k
·
2020-06-24 00:04
基础算法
STL 算法vector/set集合-交集,并集,差集,对称差
针对这里提及的四个集合运算必须特别注意:1、第一个算法需保证第一集合和第二集合有序,并从小到大排序,内部使用默认“OutputIteratorset_
intersection
(InputIterator1first1
kalilili
·
2020-06-24 00:28
STL
[LeetCode]
Intersection
of Two Arrays II(Java)
感觉我自己这个应该是最好的了publicclassSolution{publicint[]intersect(int[]nums1,int[]nums2){ListinterList=newArrayList();Arrays.sort(nums1);Arrays.sort(nums2);inti=0,j=0;while(inums2[j]){j++;}else{i++;}}int[]interA
勤奋的重剑
·
2020-06-23 23:25
学习专用
LeetCode
Intersection
of Two Arrays II(数组交集)
原题网址:https://leetcode.com/problems/
intersection
-of-two-arrays-ii/Giventwoarrays,writeafunctiontocomputetheirintersection.Example
jmspan
·
2020-06-23 23:35
哈希
哈希映射
排序
频率
交集
数学
集合
两个指针
齐头并进
php取不定个数数组交集、并集(以空间换时间)
Banana","Orange");$fruit2=array("Pear","Apple","Grape");$fruit3=array("Watermelon","Orange","Apple");$
intersection
凌云客
·
2020-06-23 22:41
PHP技巧demo
Intersection
of Two Arrays II
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultcanbeinany
jianingkid
·
2020-06-23 22:51
leetcode
LeetCode:
Intersection
of Two Arrays II
IntersectionofTwoArraysIITotalAccepted:1340TotalSubmissions:3078Difficulty:EasyGiventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachele
walker lee
·
2020-06-23 19:38
LeetCode
OJ
LeetCode解题记录
LeetCode349. 两个数组的交集(java)
示例:代码:解法一//利用集合实现classSolution{publicint[]
intersection
(int[]nums1,int[]nums2){TreeSetset=newTreeSet()
inferno devil
·
2020-06-23 18:05
LeetCode刷题
Intersection
of Two Arrays II
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultcanbeinany
huanghanqian
·
2020-06-23 15:18
leetcode
leetcode
349.
intersection
-of-two-arrays
给定两个数组,写一个函数来计算它们的交集。例子:给定num1=[1,2,2,1],nums2=[2,2],返回[2].提示:每个在结果中的元素必定是唯一的。我们可以不考虑输出结果的顺序。解题思路:遍历第一个数组,并存到一个集合中去,然后再遍历第二个数组,如果第二个数组中存在集合中的元素,则将其放入ans中,并删除集合中的这个元素。解题代码:d={}ans=[]fornuminnums1:d[num
hello_dlut
·
2020-06-23 13:34
python
Leetcode
350.
intersection
-of-two-arrays-ii
给定两个数组,写一个方法来计算它们的交集。例如:给定nums1=[1,2,2,1],nums2=[2,2],返回[2,2].注意:输出结果中每个元素出现的次数,应与元素在两个数组中出现的次数一致。我们可以不考虑输出结果的顺序。跟进:如果给定的数组已经排好序呢?你将如何优化你的算法?如果nums1的大小比nums2小很多,哪种方法更优?如果nums2的元素存储在磁盘上,内存是有限的,你不能一次加载所
hello_dlut
·
2020-06-23 13:34
python
Leetcode
Intersection
of Two Arrays (C++解法 哈希表和vector)
原题:Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Note:Eachelementintheresultmustbeunique.Theresultcanbeinanyorder.*************************
_离岛_
·
2020-06-23 12:51
leetcode
两个数组的交集
classSolution{publicint[]
intersection
(int[]nums1,int[]nums2){if(nums1==null||nums1.length==0||nums2==
gaoster
·
2020-06-23 09:48
Java
Intersection
of Two Arrays II两个数组交集(重要!)
https://leetcode.com/problems/
intersection
-of-two-arrays-ii/Giventwoarrays,writeafunctiontocomputetheirintersection.Example
知之可否
·
2020-06-23 09:40
leetcode
Intersection
of Two Arrays 两个数组交集
https://leetcode.com/problems/
intersection
-of-two-arrays/Giventwoarrays,writeafunctiontocomputetheirintersection.Example
知之可否
·
2020-06-23 09:40
leetcode
349_LeetCode_349
Intersection
of Two Arrays 题解
DescriptionGiventwoarrays,writeafunctiontocomputetheirintersectionExample:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Note:Eachelementintheresultmustbeunique.Theresultcanbeinanyorder.返回两个列表的交集,有重复元素时,只
夕舞雪薇
·
2020-06-23 09:29
LeetCode题解
350_LeetCode_350
Intersection
of Two Arrays II 题解
DescriptionGiventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresul
夕舞雪薇
·
2020-06-23 09:29
LeetCode题解
Intersection
of Two Linked Lists 解题报告(Python)
负雪明烛id:fuxuemingzhu个人博客:http://fuxuemingzhu.cn/目录题目描述题目大意解题方法双指针栈日期题目地址:https://leetcode.com/problems/
intersection
-of-two-linked-lists
负雪明烛
·
2020-06-23 09:31
LeetCode
算法
python 两个数组的交集
intersection
of two arrays
给定两个数组,写一个函数来计算它们的交集。例子:给定num1=[1,2,2,1],nums2=[2,2],返回[2].提示:每个在结果中的元素必定是唯一的。我们可以不考虑输出结果的顺序。classSolution(object):defintersection(self,nums1,nums2):""":typenums1:List[int]:typenums2:List[int]:rtype:L
瓦力冫
·
2020-06-23 08:43
python
数据结构
&
算法
精读《react-
intersection
-observer 源码》
1引言IntersectionObserver可以轻松判断元素是否可见,在之前的精读《用React做按需渲染》中介绍了原生API的方法,这次刚好看到其React封装版本react-
intersection
-observer
黄子毅
·
2020-06-23 07:32
javascript
前端
react.js
Leetcode -
Intersection
of Two Linked Lists
Mycode:/***Definitionforsingly-linkedlist.*publicclassListNode{*intval;*ListNodenext;*ListNode(intx){*val=x;*next=null;*}*}*/publicclassSolution{publicListNodegetIntersectionNode(ListNodeheadA,ListNod
Richardo92
·
2020-06-23 07:11
LeetCode 160 —
Intersection
of Two Linked Lists(C++ Python)
题目:https://oj.leetcode.com/problems/
intersection
-of-two-linked-lists/Writeaprogramtofindthenodeatwhichtheintersectionoftwosinglylinkedlistsbegins.Forexample
lilong_dream
·
2020-06-23 05:55
LeetCode
Leetcode-
Intersection
of Two Arrays-Python
IntersectionofTwoArrays查找两个数组的共有元素。Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Description解题思路:本来是想做关于排序的题目的,然后这道题的标签中就是含sort的,但我觉得用集合的方式
韦人人韦
·
2020-06-23 03:00
leetcode
Python
Algorithm
[Leedcode][JAVA][面试题 16.03. 交点]
【解答思路】https://leetcode-cn.com/problems/
intersection
-lcci/solutio
CryptWinter
·
2020-06-23 02:22
非0即1
刷题
LeetCode 349 两个数组的交集
classSolution{publicint[]
intersection
(int[]nums1,int[]nums2){Setset=newHashSetnums2[j]){j++;}else{i++
czj1992czj
·
2020-06-23 02:35
Leetcode
从零开始的LC刷题(75):
Intersection
of Two Arrays
原题:Giventwoarrays,writeafunctiontocomputetheirintersection.Example1:Input:nums1=[1,2,2,1],nums2=[2,2]Output:[2]Example2:Input:nums1=[4,9,5],nums2=[9,4,9,8,4]Output:[9,4]Note:Eachelementintheresultmust
クロネコ黒猫
·
2020-06-23 02:07
LEETCODE
C++
Intersection
of Two Arrays II [easy] (Python)
题目链接https://leetcode.com/problems/
intersection
-of-two-arrays-ii/题目原文Giventwoarrays,writeafunctiontocomputetheirintersection.Example
coder_orz
·
2020-06-22 23:21
LeetCode
LeetCode解题报告
Intersection
of Two Arrays(求两个数组的交集)
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Note:Eachelementintheresultmustbeunique.Theresultcanbeinanyorder.classSolution{public:vectori
chineseqsc
·
2020-06-22 22:19
leetcode
Intersection
of Two Arrays
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].思路,求两个数组的交集。很明显要用hashmap或者集合,字典的数据结构,因为他们的key都是唯一的,可以解决数组中多个重复数字的问题。偷懒用了下python的set:python里面s
chendian920311
·
2020-06-22 21:05
leetcode
Intersection
of Two Array II 解题报告
LeetCode350.IntersectionofTwoArrayII解题报告题目描述Giventwoarrays,writeafunctiontocomputetheirintersection.Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultcanbeinanyorder.示例Givenn
骆小坑
·
2020-06-22 20:32
编程解题
Intersection
of Two Arrays II
IntersectionofTwoArraysIIGiventwoarrays,writeafunctiontocomputetheirintersection.ExampleInput:nums1=[1,2,2,1],nums2=[2,2]Output:[2,2]SolutionclassSolution:defintersect(self,nums1:List[int],nums2:List[
Goofiness
·
2020-06-22 19:15
leetcode
trick
leetcode 349
iterator.hasNext()){ans[index++]=iterator.next();}et.iterator();code:publicclassSolution{publicint[]
intersection
普罗米修斯Aaron_Swartz
·
2020-06-22 18:15
leetcode
python-------找出数据中交集元素的方法x.
intersection
(y, z ... )
intersection
()方法用于返回两个或更多集合中都包含的元素,即交集。x.
intersection
(y,z…)应用:不同维度优秀结果的交集,优秀中的优秀。
菜菜抱富
·
2020-06-22 16:06
python
python
Dart5.Set
Set•set1.difference(set2):返回set1集合里有但set2里没有的元素集合•set1.
intersection
(set2):返回set1和set2的交集•set1.union(set2
augfun
·
2020-06-22 15:33
Dart
Intersection
of Two Arrays II 解题小结
题目是这样子的:Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultca
糠糯
·
2020-06-22 12:33
leetcode
两个数组的交集-
Intersection
of Two Arrays执行高效算法
给定两个数组,编写一个函数来计算它们的交集。示例1:输入:nums1=[1,2,2,1],nums2=[2,2]输出:[2]示例2:输入:nums1=[4,9,5],nums2=[9,4,9,8,4]输出:[9,4]说明:输出结果中的每个元素一定是唯一的。我们可以不考虑输出结果的顺序。题目很简单,我们可以利用hashset的特性,在每次“检查”的时间复杂度就只有O(1)。以下算法空间复杂度是O(N
扎克begod
·
2020-06-22 11:35
算法-排序
LeetCode
spark--RDD
spark--RDD1.RDD2.RDD操作2.1转化操作2.1.1filter过滤2.1.2union并集2.1.3map替换2.1.4flatMap合并替换2.1.5
intersection
交集2.1.6subtract
a18792721831
·
2020-06-22 10:05
大数据
spark
scala
LeetCode--Python解析【
Intersection
of Two Arrays II】(350)
题目:方法1:每次pop出nums2中的第一个元素,查找nums1中是否存在。若存在,将该元素放入result中,并删除nums1中的该元素。classSolution:defintersect(self,nums1,nums2):""":typenums1:List[int]:typenums2:List[int]:rtype:List[int]"""result=[]whilelen(nums
zjrn
·
2020-06-22 09:30
LeetCode
Intersection
of Two Arrays II
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2,2].Note:Eachelementintheresultshouldappearasmanytimesasitshowsinbotharrays.Theresultcanbeinany
Xd_Yu
·
2020-06-22 08:50
Leetcode题解
leetcode
Intersection
of Two Arrays
Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Givennums1=[1,2,2,1],nums2=[2,2],return[2].Note:Eachelementintheresultmustbeunique.Theresultcanbeinanyorder.这道题是找集合交集,题目难度为Easy。最直观的想法是用
TstsUgeg
·
2020-06-22 07:48
leetcode
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