#easy-language
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Given an integer array nums, find a subarray the product The test cases are generated so that the answer will fit in a 32-bit integer. Example...
Given an integer array nums of unique elements, return all possible subsets (the power set). The solution set must not contain duplicate subsets....
class Solution { public int totalNQueens(int n) { int[][] matrix = new int[n][n]; int[] hashPath1 = new int[n]; int[]...
The n-queens puzzle is the problem of placing n queens on an n x n chessboard such that no two queens attack each other. Given an integer n, return...
Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order. Example 1: Input: nums =...
Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Note: You...
