Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element in the result must be unique. The result can be in any order. 这道题让我们找两个数组相同的部分,难度不算大,我们可以用个set把nums1都…

Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [9,4] Note: Each element in the result must be unique. The…

Given two arrays, write a function to compute their intersection.Notice Each element in the result must be unique.    The result can be in any order. Have you met this question in a real interview?Example Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], r…

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.详见:https://leetcode.com/problems/intersection-of-two-arrays/description/C++: class Solution { public: vector<int> intersection(vector<…

Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [4,9] Note: Each element in the result should appear as…

Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2, 2]. Note: Each element in the result should appear as many times as it shows in both arrays. The result can be in any ord…

Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [4,9] Note: Each element in the result should appear as…

题目来源:https://leetcode.com/problems/median-of-two-sorted-arrays/ There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 解题思路: 题目是这样的:给…

Given two arrays, write a function to compute their intersection.Notice Each element in the result should appear as many times as it shows in both arrays.    The result can be in any order. Example Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return […

原题链接在这里:https://leetcode.com/problems/intersection-of-two-arrays/ 题目: Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element in the result must be unique. T…

原题链接在这里:https://leetcode.com/problems/intersection-of-two-arrays-ii/ 题目: Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2, 2]. Note: Each element in the result should appe…

List<Integer> res = new ArrayList<>(); Arrays.sort(nums1); Arrays.sort(nums2); int i1 = 0; int i2 = 0; while (i1<nums1.length&&i2<nums2.length) { if (nums1[i1]<nums2[i2]) i1++; else if (nums1[i1]>nums2[i2]) i2++; else { res…

题目: 给定两个数组,编写一个函数来计算它们的交集. Given two arrays, write a function to compute their intersection. 示例 1: 输入: nums1 = [1,2,2,1], nums2 = [2,2] 输出: [2,2] 示例 2: 输入: nums1 = [4,9,5], nums2 = [9,4,9,8,4] 输出: [4,9] 说明: 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…

Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [9,4] Note: Each element in the result must be unique. The…

There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 这道题让我们求两个有序数组的中位数,而且限制了时间复杂度为O(log (m+n)),看到这个时间复杂度,自然而然的想到了应该使用二分查找法来求解.但是这道题…

There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). You may assume nums1 and nums2 cannot be both empty. Example 1: nums1 = [1, 3]…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/4044 访问. 给定两个数组,编写一个函数来计算它们的交集. 输入: nums1 = [1,2,2,1], nums2 = [2,2] 输出: [2,2] 输入: nums1 = [4,9,5], nums2 = [9,4,9,8,4] 输出: [4,9] 说明: 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.…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/4042 访问. 给定两个数组,编写一个函数来计算它们的交集. 输入: nums1 = [1,2,2,1], nums2 = [2,2] 输出: [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. Given two arrays,…

题目: There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 题意: 两个排序后的数组nums1 和nums2,长度分别是m,n,找出其中位数,并且时间复杂度:O(log(m+n)) 最愚蠢的方法: 两个数组合…

169. Majority Element /** * @param {number[]} nums * @return {number} */ var majorityElement = function(nums) { var hash = {}; var y=-1,z; //注意这里的方括号,利用变量访问对象属性时要用方括号 for(var i=0;i<=nums.length-1;i++){ if(hash[nums[i]]){ hash[nums[i]]++; }else{ hash[…

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,你不能一次加载所有的元素到内存…

作者: 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 判断排序后是否相等 统计字符出现次数 日期 题目地址:https://leetcode-cn.com/problems/make-two-arrays-equal-by-reversing-sub-arrays/ 题目描述 给你两个长度相同的整数数组 target 和 arr . 每一步中,你可以选择 arr 的任意 非空子数组 并将它翻转.你可以执行…

这两道题都是求两个数组之间的重复元素,因此把它们放在一起. 原题地址: 349 Intersection of Two Arrays :https://leetcode.com/problems/intersection-of-two-arrays/description/ 350 Intersection of Two Arrays II:https://leetcode.com/problems/intersection-of-two-arrays-ii/description/ 题目&&am…

最近,在用解决LeetCode问题的时候,做了349: Intersection of Two Arrays这个问题,就是求两个列表的交集.我这种弱鸡,第一种想法是把问题解决,而不是分析复杂度,于是写出了如下代码: class Solution(object): def intersection(self, nums1, nums2): """ :type nums1: List[int] :type nums2: List[int] :rtype: List[int] &q…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2, 2]. Note: Each element in t…

题目描述: 给定两个数组求他们的公共部分,输出形式是数组,相同的元素只是输出一次 例如: nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. 原文描述: Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element…

这是悦乐书的第207次更新,第219篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第75题(顺位题号是349).给定两个数组,编写一个函数来计算它们的交集.例如: 输入:nums1 = [1,2,2,1],nums2 = [2,2] 输出:[2] 输入:nums1 = [4,9,5],nums2 = [9,4,9,8,4] 输出:[9,4] 注意: 结果中的每个元素都必须是唯一的. 结果可以是任何顺序. 本次解题使用的开发工具是eclipse,jdk使用的版本是1.…

目录 [LeetCode题解]349_两个数组的交集 描述 方法一:两个哈希表 Java 实现 类似的 Java 实现 Python 实现 类似的 Python 实现 方法二:双指针 Java 实现 方法三:二分查找 Java 实现 方法四 Java 实现 [LeetCode题解]349_两个数组的交集 描述 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]…

作者: 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 方法一:Java解法,HashSet 方法二:Python解法,set 日期 [LeetCode] 题目地址:https://leetcode.com/problems/intersection-of-two-arrays/ Difficulty: Easy 题目描述 Given two arrays, write a function to com…

Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element in the result must be unique. The result can be in any order. Subscribe to see which companies asked…