先将两数组排序,然后使用双指针,依次判断两数组中的元素是否相等,如果某个元素大于或小于另外一个元素,则将指针向后移动,如果相等,则将元素放入ArrayList中,然后将ArrayList中的元素迭代放入数组,最后返回。 因为使用Arrays类的sort方法,所以时间复杂度是O(n log(n)),空间复杂度是O(n)。 publicint[]intersect(int...
Given two arrays, write a function to compute their intersection. Example: Givennums1=[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 order. Follow up: What if the ...
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] 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 many times...
350. Intersection of Two Arrays II 两个数组的交集 II,Title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]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
先对字符串1生成hash结果,统计每个字符出现的次数。然后遍历字符串2,如果字符串2中的字符出现在字符串1中,则减少hash结果中该字符的次数,并且把这个字符加入到结果集合中。这里如果要对中间结果的空间进行节省,建议对字符串长度短的那个进行hash(并不能保证短的那个出现的字符少,但通常这样认为)。
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. ...
We firstly sort the two arrays and use two pointers to compare theelementsin the two arrays from the beginning to the end. If the two elements are the same, forward both pointers and put the element to the return array If the two elements are not the same, move the smaller one's poin...
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In this paper we give a bound for the number ℓ(c,a,b) of columns (c,a,b)T in the intersection array of a distance-regular graph. We also show that this ... S Bang,JH Koolen,V Moulton 被引量: 0发表: 2003年 A remark on the intersection arrays of distance-regular graphs It ...