Problem statement In the problem ” Number of Equivalent Domino Pairs,” we are given a list of dominoes where each domino consists of two values like dominoes[i]=[a,b]. Two dominoes, dominoes[i] =[a,b] and dominoes[j]=[c,d] are equivalent if (a==c and b==d) or (a==d and c==d). Our task is to find out the …
In this problem, we are given an array of points. This represents a list of x-coordinates and y-coordinates of some points that lie on an X-Y 2-D plane. We need to check if these points form a straight line. Note that there will be at least 2 points in the …
In the problem “Palindrome Linked List”, we have to check whether a given singly integer linked list is a palindrome or not. Example List = {1 -> 2 -> 3 -> 2 -> 1} true Explanation #1: The list is palindrome as all elements from the start and back are …
Problem Statement In this problem we have been given Row index(i) of the Pascal Triangle. We have to create a linear array containing the values of the ith row and return it. Row index starts from 0. We know that Pascal’s triangle is a triangle where each number is the …
Problem Statement In the problem a binary tree is given and we have to find out the maximum depth of the given tree. A binary tree’s maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Example 3 / …
In this problem, we are given an N-ary tree, that is, a tree that allows nodes to have more than 2 children. We need to find the depth of a leaf farthest from the root of the tree. This is called maximum depth. Note that the depth of a path …
In this problem, we are given a Binary Search Tree and an integer. We need to find the address of a node with value same as the given integer. As a check, we need to print the preorder traversal of the sub-tree that has this node as root. If there …
The problem Count Complete Group Leetcode Solution provides us with an integer. We are required to find the sum of digits of each number between 1 and n (inclusive). We will then group the numbers with the same sum of digits and keep a count. Then we need to compute …
In this problem, we are given two strings. The second string is generated by shuffling the characters of the first string randomly and then adding an extra character at any random position. We need to return the extra character that was added to the second string. The characters will always …
Problem Statement Given two binary strings a and b, we have to add these two strings and then return the result as a binary string. Binary string are the strings that contains only 0s and 1s. Example a = “11”, b = “1” “100” a = “1010”, b = “1011” “10101” Approach For adding two …