代码随想录算法训练营第二十九天 | LeetCode491.递增子序列、46.全排列、47.全排列 II 一、491.递增子序列 解题代码C++: class Solution {private:vector<vector<int>> result;vector<int> path;void backtracking(vector<int>& nums, int startIndex)
文章目录 一、题目二、题解 一、题目 Given an integer array nums, return all the different possible non-decreasing subsequences of the given array with at least two elements. You may return the answer in any