【[Leetcode] subsets ii 求数组所有的子集】的更多相关文章

[Leetcode] subsets ii 求数组所有的子集

Given a collection of integers that might contain duplicates, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example,If S =[1,2,2], a solution is: […

[Leetcode] subsets 求数组所有的子集

Given a set of distinct integers, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example,If S =[1,2,3], a solution is: [ [3], [1], [2], [1,2,3], [1,…

LeetCode Subsets II （DFS）

题意: 给一个集合,有n个可能相同的元素,求出所有的子集(包括空集,但是不能重复). 思路: 看这个就差不多了.LEETCODE SUBSETS (DFS) class Solution { public: vector<vector<int>> subsets(vector<int>& nums) { sort(nums.begin(),nums.end()); DFS(,nums,tmp); ans.push_back(vector<int>()…

[LeetCode] Subsets II 子集合之二

Given a collection of integers that might contain duplicates, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example,If S = [1,2,2], a solution is:…

[leetcode]Subsets II @ Python

原题地址:https://oj.leetcode.com/problems/subsets-ii/ 题意: Given a collection of integers that might contain duplicates, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicat…

[LeetCode] H-Index II 求H指数之二

Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize your algorithm? Hint: Expected runtime complexity is in O(log n) and the input is sorted. 这题是之前那道H-Index 求H指数的拓展,输入数组是有序的,让我们在O(log n)的时间内完成计算,看到这个时间复…

lintcode 中等题：subsets II 带重复元素的子集

题目 带重复元素的子集 给定一个可能具有重复数字的列表,返回其所有可能的子集 样例 如果 S = [1,2,2],一个可能的答案为: [ [2], [1], [1,2,2], [2,2], [1,2], [] ] 注意 子集中的每个元素都是非降序的 两个子集间的顺序是无关紧要的 解集中不能包含重复子集 挑战 你可以同时用递归与非递归的方式解决么? 解题 一个很简单的想法就是在上一题目中增加判断是否已经存在某个子集 class Solution: """ @param S: A…

【leetcode题目整理】数组中找子集

368. Largest Divisible Subset 题意:找到所有元素都不同的数组中满足以下规则的最大子集,规则为:子集中的任意两个元素a和b,满足a%b=0或者b%a=0. 解答:利用动态规划法求解.先给数组排好序.定义dp[i]表示以nums[i]结尾的子集的大小,则dp[i+1]=dp[j]+1,if nums[i+1]%nums[j]==0, 0<=j<=i,或者dp[i+1]=1.时间复杂度为O(n2). 代码如下: public List<Integer> la…

[Leetcode] Subsets II

Given a collection of integers that might contain duplicates, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example,If S = [1,2,2], a solution is:…

[LeetCode] Subsets II [32]

题目 Given a collection of integers that might contain duplicates, S, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example, If S = [1,2,2], a solution…