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
tmpdic[num]=tmpdic.get(num)-1 return commonList sol=Solution() print sol.intersect(nums1=[1,1,1], nums2=[1,1])
【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() print sol.intersection(nums1 =[1, 2, 2, 1]...
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array([1, 2, 3, 4, 5]) array2 = np.array([4, 5, 6, 7, 8]) array3 = np.array([5, 6, 7, 8, 9]) # Find intersection of all arrays intersection = reduce(np.intersect1d, [array1, array2, array3]) print("Intersection of multiple arrays:", intersection) ...
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。...[...
Learn how to find the intersection of two arrays in Python with our step-by-step guide and example code.
LeetCode编程练习 - Intersection of Two Arrays II学习心得 memory is limited such that you cannot load all elements into the memory at once?给定两个数组,输出它们的交集。 思路: 对两个数组进行排序,然后遍历两个数组进行比较,若相等,则将结果保存到a中,然后将两个索引递加,若不相等,将较小的数组的索...
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. 其实前两题不难,思路也还比较清晰。
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; ...