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Given the root of a binary tree and an integer targetSum, return all root-to-leaf paths where the sum of the node values in the path equals targetSum....
Given an integer array nums that may contain duplicates, return all possible subsets (the power set). The solution set must not contain duplicate...
Given an array of integers nums sorted in non-decreasing order, find the starting and ending position of a given target value. If target is not found...
Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: //Each row must contain the...
There is an integer array nums sorted in ascending order (with distinct values). Prior to being passed to your function, nums is possibly rotated at...
Given a collection of numbers, nums, that might contain duplicates, return all possible unique permutations in any order. Example 1: Input: nums =...
