Elements in a combination (a1,a2, … ,ak) must be in non-descending order. (ie,a1 ≤a2 ≤…≤ak). The solution set must not contain duplicate combinations. For example, given candidate set10,1,2,7,6,1,5and target8, A solution set is: [1, 7] [1, 2, 5] [2, 6] [1, 1...
Elements in a combination (a1, a2, … , ak) must be in non-descending order. (ie, a1 ≤ a2 ≤…≤ ak). The solution set must not contain duplicate combinations. For example, given candidate set 10,1,2,7,6,1,5 and target 8, A solution set is: [1, 7] [1, 2, 5] [2, ...
方法一:DFS 这个题和之前的39. Combination Sum基本相同,这个题不允许一个数字多次出现,所以每次递归需要比上一轮开始的位置向后移动一个。 另外这个题一直做不出来的原因是把dfs的i写成了index…要注意内层递归的时候,传入的位置是i不是index. 输入: [10,1,2,7,6,1,5] 8 结果: [1, 1, 2, 5, 6, ...
The solution set must not contain duplicate combinations. Example 1: Input: candidates = [10,1,2,7,6,1,5], target = 8, A solution set is: [ [1, 7], [1, 2, 5], [2, 6], [1, 1, 6] ] Example 2: Input: candidates = [2,5,2,1,2], target = 5, A solution set is:...
这道题和 Combination Sum 极其相似,主要的区别是Combination Sum中的元素是没有重复的,且每个元素可以使用无限次;而这题中的元素是有重复的,每个元素最多只能使用一次。 代码 更改上一题代码: 1.将candidates[i:]变为candidates[i+1:] 2.再加入flag让后面不必要的累加提前结束(上一题也适用,后来想到的) ...
The solution set must not contain duplicate combinations. For example, given candidate set10,1,2,7,6,1,5and target8, A solution set is:[1, 7][1, 2, 5][2, 6][1, 1, 6] 本题和Combination Sum 非常类似,也是从一组数中找到其和为指定值的所有组合。但是本题的特殊之处在于每个给出的...
A solution set is: [1, 7] [1, 2, 5] [2, 6] [1, 1, 6] classSolution{publicstaticList<List<Integer>>combinationSum2(int[]candidateNumList,inttarget){int[]flag=newint[candidateNumList.size()];Collections.sort(candidateNumList);dfs(0,target,flag,candidateNumList);}publicstaticvoiddfs(int...
A solution set is: 1, 7 1, 2, 5 2, 6 1, 1, 6 Combination Sum每个元素可以使用多次,所以递归是dfs(i, target - candidatesi, result, cur, candidates); Combination Sum II每个元素只能使用一次,所以递归是dfs(i + 1, target - candidatesi, rt, cur, candidates);因为解可能重复,所以使用set,...
[1, 2, 5] [2, 6] [1, 1, 6] class Solution { public: vector<vector<int> > combinationSum2(vector<int> &num, int target) { //回溯法 sort(num.begin(),num.end()); vector< vector<int> > res; ...
«Solution to Combination Sum by LeetCode Solution to First Missing Positive by LeetCode» Guideline for Comments tl;dr: Please put your code into a YOUR CODE section. Hello everyone! If you want to ask a question about the solution. DO READ the post and comments firstly. If you had ...