二：137. 只出现一次的数字 IIleetcode-cn.com/problems/single-number-ii/?utm_campaign=lcsocial...
0 <= nums1[i], nums2[i] <= 1000来源:力扣(LeetCode) 链接:https://leetcode.cn/problems/intersection-of-two-arrays 设计思路: 组装成两个set,由于每个set键值唯一,for循环,可以判断出交集 复杂度2*O(h) coding: packagecom.company;importjava.util.Objects;importjava.util.Set;importjava.util.Tree...
LeetCode34. 在排序数组中查找元素的第一个和最后一个位置 ☕ 题目:34. 在排序数组中查找元素的第一个和最后一个位置 (https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/) ❓ 难度:中等 📕 描述: 给定一个按照升序排列的整数数组 nums,和一个目标值 target。
465 Intersection of Two Arrays.java Easy Java [Binary Search, Hash Table, Sort, Two Pointers] 466 Strobogrammatic Number.java Easy Java [Enumeration, Hash Table, Math] 467 Valid Parentheses.java Easy Java [Stack, String] 468 First Unique Character in a String.java Easy Java [Hash Table...
https://leetcode.com/contest/weekly-contest-368/problems/minimum-number-of-groups-to-create-a-valid-assignment/ Weekly Contest 371 2934.Minimum Operations to Maximize Last Elements in Arrays 题意分析: Weekly Contest 372 2939. Maximum Xor Product 题意分析: 题目解答: 第三题攻坚战: 1.见题知点...
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I had two problems, the first one was exactlyhttps://leetcode.com/problems/maximum-points-you-can-obtain-from-cards/so will not open another thread. The second one as the following : You are given one more array of size K. This array is called a multiplier array. First element will ge...
下面的思路借鉴自讨论区(https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/discuss/91049/Java-O(n%29-solution-using-bit-manipulation-and-HashMap)的一个解法。现在 Medium 的题目居然也需要看解答了,叹气。 代码语言:javascript 代码运行次数:0 复制Cloud Studio 代码运行 class Solutio...
publicstaticint[]sortByBitsMe(int[]arr){Map<Integer,ArrayList<Integer>>map=newHashMap<>(16,1);Arrays.sort(arr);int count=0;for(int i:arr){count=binaryHaveOneNum(i);if(map.get(count)==null){map.put(count,newArrayList<>());}map.get(count).add(i);}int end=-1;for(int i=0;i...