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Lexicographically Kth-smallest string having ‘a’ X times and ‘b’ Y times is a problem where we need to find the Kth smallest string that contains X number of ‘a’s and Y number of ‘b’s. The strings are arranged lexicographically which means that the smallest string comes first when we sort all the possible strings. In this tutorial, we will discuss how to solve this problem using C++. We will start by understanding the problem statement in detail, followed by the algorithmic approach. We will then move on to implementing the solution in C++ using dynamic programming. The code ... Read More
In this tutorial, we delve into the problem of dividing a given string into two non-empty subsets, where the first subset is the reverse of the second subset. We aim to provide an efficient solution to count the number of ways to achieve such partitions. By leveraging the power of the C++ programming language, we present a solution that utilizes bitmasking and string manipulation techniques to iterate through all possible partitions and validate them against the given condition. We will explore the step-by-step implementation of the solution, discussing the algorithm and code structure. Additionally, we will provide a ... Read More
Count possible decoding of a given digit sequence with hidden characters is a fascinating problem in the realm of string decoding. In this tutorial, we delve into the challenge of decoding a sequence of digits that may contain hidden characters denoted by asterisks ('*'). The task at hand is to determine the number of ways these hidden characters can be decoded, taking into account a specific mapping of letters from A to Z to the digits 1 to 26. We present an efficient solution using the power of C++ programming language and dynamic programming techniques. By ... Read More
Check if a given pattern exists in a given string or not including wild cards * and . is a common problem in computer science and programming. In this problem, we are given a string (text) and a pattern, which can contain wildcard characters '*' and '.', and we need to check if the pattern matches the text or not. This problem is encountered in a wide range of applications, such as search engines, file systems, and network protocols. In this tutorial, we will discuss a simple and efficient solution to this problem using C++. We will start ... Read More
In this tutorial, we will explore a problem statement that involves checking whether a string, formed by combining the first X characters and the last X characters of a given string, is a palindrome or not. A palindrome refers to a sequence of characters that remain unchanged when reading both forwards and backwards. The task is to determine if the resulting combined string, derived from the specified characters at the beginning and end of the original string, exhibits palindrome properties. To accomplish this, we will delve into an effective solution using the C++ programming language. By breaking ... Read More
There are instances when you simply don't want every element of your website to be exposed. In other words, you don't want every template element of a page, post, header, or footer displayed every time it appears. And while it might appear that you need to update the template or theme code each time you want this omission to happen, that's not actually true. In fact, with only CSS, you may rapidly hide parts of your website. And it's really not that difficult. Let's dive into the article for getting better understanding of the different ways to hide elements using ... Read More
Checking if a permutation of S2 can be obtained by adding or removing characters from S1 is a common problem in computer science. This problem is of great significance in various domains, including data processing, text analysis, and pattern recognition. In this tutorial, we will be presenting a solution to this problem using C++ programming language. The approach involves analyzing the characteristics of S1 and S2 to establish whether S2 can be rearranged to form a permutation of S1. We will be providing the C++ code for this approach along with explanations to help readers understand the problem ... Read More
The language used to create web pages is known as HTML (Hypertext Markup Language). It is a markup language rather than a real programming language. Hypertext is text that contains an embedded link to another web page or website. HTML is mostly used to lay the groundwork for and structure a webpage. Html serves as the foundation of web pages. All of the websites you visit use HTML to some degree. Every web developer has to learn HTML, to begin with. HTML5 is the most recent and most advanced version of HTML. Together with CSS3, it performs fantastically. If you're considering ... Read More
In the field of web design, the 3D text effect is one of the most popular text effects. One should be able to build a 3D text effect as a designer or front-end developer. Today, we'll examine one of the simplest and most straightforward techniques for rendering text in 3d look. The text-shadow attribute is what gave the 3D text movement effect its design. The purpose of applying several text-shadows is to give the word a 3D appearance since if we simply applied a single (or unitary) text-shadow, it would be the same for all of the alphabets in the ... Read More
If the given number contains an even number of digits and the digits of the number can be divided into two equal parts from the middle. After dividing the digits sum up the divided digits and find the square of the final sum. If the square is equal to the sum itself then the given number is a tech number otherwise not. Example Demonstration Input 3025 Output Yes the given number is a tech number Input 2341 Output No the given number is not a tech number Here, 3025 is a ... Read More