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class Solution { public: vector<vector<int>> permute(vector<int>& nums) { vector<vector<int>> ans; dfs(nums, vector<bool>(nums.size()), {}, ans); return ans; } private: void dfs(const vector<int>& nums, vector<bool>&& used, vector<int>&& path, vector<vector<int>>& ans) { if (path.size() == nums.size()) { ans.push_back(path); return; } for (int ...
Permutations - Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order. Example 1: Input: nums = [1,2,3] Output: [ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1]] Example 2: Input: nums = [0,1] Output: [ [0,1], [1,0]] Example 3: Input: nums = [1] Output: [ [1]] ...
Permutations – Leetcode Solution. Table of Contents. Problem. Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order. Example 1 : Input: nums = [1,2,3] Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] Example 2 : Input: nums = [0,1] Output: [[0,1],[1,0]] Example 3 :
Permutations Leetcode Solution. Do you know how to find all the permutations of the given numeric array, along with code in CPP and Java.
Dec 26, 2022 · In this problem, you must generate all permutations of a given array of distinct integers. Follow our clear and concise explanation to understand the approach and code for this problem.
Can you solve this real interview question? Permutations - Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
class Solution { public: string getPermutation(int n, int k) { string ans; vector<int> nums(n); vector<int> fact(n + 1, 1); // fact[i] := i! iota(nums.begin(), nums.end(), 1); for (int i = 2; i <= n; ++i) fact[i] = fact[i - 1] * i; --k; // 0-indexed for (int i = n - 1; i >= 0; --i) { const int j = k / fact[i]; k %= fact[i]; ans += to_string ...
