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Minimum removals required such that a given string consists only of a pair of alternating characters is a common problem in computer science and is encountered frequently in applications involving string manipulation. In this tutorial, we will solve this problem using the C++ programming language. We will begin by explaining the problem statement in detail and discussing its importance in various real-world applications. Then, we will provide a step-by-step algorithm to solve this problem and demonstrate its implementation in C++. Finally, we will conclude with some insights into the time and space complexity of our solution ... Read More
The minimum number of replacements done of the substring “01” with “110” to remove it completely is a common problem in string manipulation and optimization. In this tutorial, we delve into this problem and present an efficient solution using C++. The problem entails finding the minimum number of replacements required to transform a binary string by replacing all occurrences of the substring "01" with "110" while ensuring that the resulting string does not contain the substring "10". We provide a detailed explanation of the problem statement, present an algorithmic approach to solve it, and offer a ... Read More
Finding the minimum distance between duplicates in a string is a frequently encountered problem in computer science. It involves finding the smallest distance between any two identical characters in a given string. For example, in the string "minimum distance, " the minimum distance between the two 'i's is two, as they occur at positions 1 and 3, respectively. This problem can be solved using different programming languages, including C++. In this tutorial, we will learn a C++ algorithm with implementation to efficiently solve this problem. So let's get into this and learn something new and exciting! Problem ... Read More
The maximum score possible by removing substrings made up of a single distinct character is a well-known problem in the field of computer science and algorithm design. The problem statement involves finding the optimal solution to remove all the contiguous substrings from a binary string that contains only one type of character and score points for every removed substring of length K, where K can vary for each substring. This problem has various real-life applications, including text analysis and compression. In this tutorial, we will provide a solution to this problem using C++, and explain the logic behind ... Read More
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