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,n
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 result can be in...
tmpdic[num]=tmpdic.get(num)-1 return commonList sol=Solution() print sol.intersect(nums1=[1,1,1], nums2=[1,1])
一、前言 做了两题才慢慢摸清了leetcode的操作。 二、题349 Intersection of Two Arrays Given two arrays, write a function to compute their intersection. classSolution(object):defintersection(self, nums1, nums2):""":type nums1: List[int] :type nums2: List[int] :rtype: List[int]"""nums3...
349. Intersection of Two Arrays&&350. Intersection of Two Arrays II,程序员大本营,技术文章内容聚合第一站。
题目: Given two arrays, write a function to compute their intersection. Example: Given nums...LeetCode(4)Median of Two Sorted Arrays 题目如下: Python代码: 补充说一句,我写的虽然最后结果对,但是题目对算法要求时间复杂度要为log(m+n),没达到要求。...[...
Intersection of Two Arrays II in Python - Suppose we have two arrays A and B, there are few elements in these array. We have to find the intersection of them. So if A = [1, 4, 5, 3, 6], and B = [2, 3, 5, 7, 9], then intersection will be [3, 5]To solve th
As we can perform intersection on two sets and update result in the first set, in the same way we can perform on multiple sets also. This example is about applying the intersection_update() method on three sets −Open Compiler # Define three sets set1 = {1, 2, 3, 4, 5} set2 ...
【leetcode python】Intersection of Two Arrays #-*- coding: UTF-8 -*- #求两个集合的交集 class Solution(object): def intersection(self, nums1, nums2): resultList=list(set(nums1).intersection(set(nums2))) return resultList sol=Solution()...
https://leetcode.com/problems/intersection-of-two-arrays-ii/ 把一个数组中的元素的元素对应到哈希表,key是值,value是出现的次数,然后对照哈希表遍历另一个数组,O(n)。 follow up的问题: 1. 两个数组都有序的话可以用双指针; 2. 把num1做成哈希表,数量比较少; ...