2、分析 给定两个数组,编写一个函数来计算它们的交集。 这道题和上道题很像,但是相比较而言,上道题只需要输出重复的一个元素就行,所以上道题可以采用set。这道题可以将数组nums1存入一个哈希表,数组的值和这个值出现的次数构成一组对应元素,然后遍历数组2,如果哈希表中这个值为0代表没有这个元素,如果不为0则...
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次数的最小值一致。 我们可以不考虑输出结果的顺序。 链接:https://leetcode-cn.com/problems/intersection-of-two-arrays-ii python ## 哈希表,也适用于另一个数组很大,存...
题目要求 给定两个数组,编写函数计算它们的交集。示例,给定nums1 = [1, 2, 2, 1],nums2 = [2, 2],返回结果为 [2, 2]。进阶问题:思路解析 解决方案一:这是Intersection of Two Arrays的加强版,同样使用HashMap。需要考虑交集中的重复次数。代码如下,时间复杂度为O(m+n)。解决方案二...
Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] 1. 2. Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [4,9] 1. 2. Note: Each element in the result should ap...
Each element in the result should appear as many times as it shows in both arrays. The result can be in any order. 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: [2,2] ...
每天一算:Intersection of Two Arrays leetcode上第349号问题:Intersection of Two Arrays 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:...
350. Intersection of Two Arrays II* https://leetcode.com/problems/intersection-of-two-arrays-ii/ 题目描述 Given two arrays, write a function to compute their intersection. Example 1: Input: nums1=[1,2,2,1], nums2=[2,2] ...
Counter计数:如果nums2中的元素在counter中计数大于0,则添加到res中,并且计数减1; classSolution(object):defintersect(self,nums1,nums2):""" :type nums1: List[int] :type nums2: List[int] :rtype: List[int] """fromcollectionsimportCounter ...
[LeetCode] Intersection of Two Arrays 两个数组相交 Given two arrays, write a function to compute their intersection. Example: Givennums1=[1, 2, 2, 1],nums2=[2, 2], return[2]. Note: Each element in the result must be unique.
每天一算:Intersection of Two Arrays II leetcode上第350号问题:Intersection of Two Arrays II 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: [2,2] 示例2: 输入: nums1 = [4,9,5], nums2 = [9,4,9,8,4]...