Given a number in the form of a string, we need to find where to make it divisible by eight after deleting zero or more elements. In other words, we need to find whether there is a subsequence of the string, which is divisible by 8. Return the modified string ... Read More

Given an algebraic string like p-(q-r)-s, we need to remove the brackets and convert this string to a string with the same mathematical result. So the string p-(q-r)-s is converted to p-q+r-s, giving us the same mathematical result. To achieve this, we can use a stack and keep track of ... Read More

In this problem, we have a binary tree with a path from the root node to the leaf node that is completely defined. The sum of all nodes from the root node to the leaf node must be greater than or equal to, a constant value, k. So we need ... Read More

Given a number in the form of a string, we need to find where to make it divisible by eight after deleting zero or more elements. In other words, we need to find whether there is a subsequence of the string, which is divisible by 8. Return the modified string ... Read More

In this problem, we have a binary tree with a path from the root node to the leaf node that is completely defined. The sum of all nodes from a root node to a leaf node must be greater than or equal to k. So we need to remove all ... Read More

In this problem, we must build C++ code to determine whether or not an array may be divided into two equal subarrays. Also, we have to check the condition if the sum of all the elements in both subarrays is exactly the same or not. The partitioning problem is a ... Read More

The parallel array is also called the structure array.Definition − A parallel array can be defined as multiple arrays in which the ith elements are closely related, and together, they constitute an entity. An array is a fundamental feature in the C++ language. Making parallel arrays helps us in comparing ... Read More

In this tutorial, we need to solve palindrome substring queries of the given string. Solving palindrome substring queries is far more complex than solving regular queries in C++. It requires a far more complex code and logic.In this tutorial, we are provided string str and Q number of substring[L...R] queries, ... Read More

"Madam" or "racecar" are two words that read the same backward as forwards, called palindromes.If we are given a collection or list of strings, we have to write a C++ code to find out if that can join any two strings in the list together to form a palindrome or ... Read More

In a binary tree, there are only two nodes (left and right) in each child node. Tree structures are simply representations of data. Binary Search Trees (BSTs) are special types of Binary Trees that meet these conditions −Compared to its parent, the left child node is smallerThe parent node of ... Read More