27. Remove ElementGiven an array nums and a value val, remove all instances of that value in-place and return the new length.Feb 19, 2022Feb 19, 2022

104. Maximum Depth of Binary TreeGiven the root of a binary tree, return its maximum depth.Feb 19, 2022Feb 19, 2022

867. Transpose MatrixGiven a 2D integer array matrix, return the transpose of matrix.Feb 19, 2022Feb 19, 2022

26. Remove Duplicates from Sorted ArrayGiven a sorted array nums, remove the duplicates in-place such that each element appears only once and returns the new length.Feb 19, 2022Feb 19, 2022

136. Single NumberGiven a non-empty array of integers nums, every element appears twice except for one. Find that single one.Feb 19, 2022Feb 19, 2022

145. Binary Tree Postorder TraversalGiven the root of a binary tree, return the postorder traversal of its nodes' values.Feb 19, 2022Feb 19, 2022

155. Min StackDesign a stack that supports push, pop, top, and retrieving the minimum element in constant time.Feb 19, 2022Feb 19, 2022