可以用来解决的问题有: Leetcode 78. Subsets , Leetcode 90. Subsets II, Leetcode 46. Permutations, Leetcode 47. Permutations II(contains duplicates), Leetcode 39. Combination Sum, Leetcode 40. Combination Sum II, Leetcode 131. Palindrome Partitioning. 好文要顶 关注我 收藏该文 微信分享 Joh...
然后第二层的指针指向3,继续dfs。 public List<List<Integer>>subsets(int[]nums){List<List<Integer>>result=newArrayList<>();List<Integer>cell=newArrayList<>();dfs(nums,result,cell,0);returnresult;}publicvoiddfs(int[]nums,List<List<Integer>>result,List<Integer>cell,int start){//add 放在for的...
Given a vector of integers and an integer k, we are to find if we can divide the array into k non-empty subsets with equal sums. Return true if we can or otherwise, false. Example 1:Input: arr = [5,2,1,2,3,4,3], k = 4Output: trueExplanation: Possible subsets are- [2,3]...
这个题目实际上就是[LeetCode] 90.Subsets II tag: backtracking只不过要找到符合条件的subset,再append进入ans中。 Note: 因为都是positive number,如果nums[i] > target: continue Code classSolution:defcombinationSum(self, nums, target): ans=[] nums.sort()#because has duplicatesself.search(ans, nums,...
Breadcrumbs InterviewBit-Practices /Backtracking /Subsets / Combination_Sum_II.py Latest commit HistoryHistory File metadata and controls Code Blame 24 lines (22 loc) · 699 Bytes Raw class Solution: # @param c : list of integers # @param t : integer # @return a list of list of integer...
Given a non-empty array nums containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both subsets is equal. Example 1: Input: nums = [1,5,11,5] Output: true Explanation: The array can be partitioned as [1, 5, 5]...
大部分时候都不能预先删除候选集的重复元素再去找所有方案,因为这可能会造成丢解(比如 subsets-ii 里一个方案里可能包括多个重复元素,故不能预先删除候选集的重复数)。但这道题比较特殊的地方在于每个元素可以选任意多次,因此,一个元素选多次自然会包括多个重复数字全部被选的所有可能,故即使预先删除了候选集的重复...
Combination Sum Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. The same repeated number may be chosen from C unlimited number of times. Note: ...
Partition a set into k subset with equal sum: Here, we are going to learn to make partitions for k subsets each of them having equal sum using backtracking.
Subsets II Problem Given a collection of integers that might contain duplicates, nums, return all possible subsets. Note: The solution set must not contain duplicate subsets. For example, If nums = [1,2,2], a solution is: [ [2], ...