In this problem, we are given the root node of a Binary Search Tree containing integer values and an integer value of a node that we have to add in the Binary Search Tree and return its structure. After inserting the element into the BST, we have to print its …
In “Iterative Inorder Traversal of a Binary Tree” problem we are given a binary tree. We need to traverse it in inorder fashion “iteratively”, without the recursion. Example 2 / \ 1 3 / \ 4 5 4 1 5 2 3 1 / \ 2 3 / \ 4 …
We can traverse a tree in the inorder fashion iteratively, using stack, but it consumes space. So, in this problem, we are going to traverse a tree without the linear space being used. This concept is called Morris Inorder Traversal or Threading in Binary trees. Example 2 / \ 1 …
The problem Permutations Leetcode Solution provides a simple sequence of integers and asks us to return a complete vector or array of all the permutations of the given sequence. So, before going into solving the problem. We should be familiar with permutations. So, a permutation is nothing but an arrangement …
In the “House Robber II” problem, a robber wants to rob money from different houses. The amount of money in the houses is represented through an array. We need to find the maximum sum of money that can be made by adding the elements in a given array according to …
The problem Multiply Strings Leetcode solution asks us to multiply two strings which are given to us as input. We are required to print or return this result of multiplying to the caller function. So to put it more formally given two strings, find the product of the given strings. …
Consider a sorted array but one index was picked and the array was rotated at that point. Now, once the array has been rotated you are required to find a particular target element and return its index. In case, the element is not present, return -1. The problem is generally …
Problem statement In the problem ” Lexicographical Numbers” we are given a number n. Our task is to print numbers between 1 and n in lexicographical order. Example n=13 [1 10 11 12 13 2 3 4 5 6 7 8 9] Explanation: As we have to print numbers between …
In this problem, we are given an integer and are required to convert into roman numeral. Thus the problem is generally referred to as “Integer to Roman” and this is Integer to Roman Leetcode Solution. If someone does not know about Roman numerals. In the old times, people did not …
Problem statement In the problem ” Minimum Score Triangulation of Polygon” we are given a value array where each element in the array represents the value of a N-sided polygon when labeled in a clockwise direction. Our task is to triangulate the polygon into N-2 triangles. The score to triangulate …