When working with binary strings in C++, it is common to need to identify specific patterns or players who perform certain actions. One common task is to find the player who is the last to remove any character from the beginning of a binary string. In this article, we will discuss an algorithm to solve this problem and provide a sample implementation in C++. Problem Statement Given a binary string s and two players A and B, the players take turns removing any character from the beginning of the string. The player who removes the last character wins. If both ... Read More

In this article, we will explore the concept of finding the maximum occurring character in a string after performing a given set of operations. This problem often arises in programming challenges and interviews, and mastering the solution helps strengthen your string manipulation and algorithm skills. We will explain the problem statement, discuss the algorithm used, present the C++ implementation, and provide a test case example to demonstrate the solution. Problem Statement Given a string s and a set of operations, find the maximum occurring character after performing all the operations. Each operation consists of a pair (i, j), representing that ... Read More

Welcome to our comprehensive guide on a stimulating algorithmic problem involving binary strings in C++. We will be examining a problem where we need to find the last player who can flip a character in a binary string. This problem is a great exercise for understanding game theory and binary string manipulation. Problem Statement Given a binary string, we have two players who take turns to flip a '1' into a '0'. The player who cannot make a move loses the game. The task is to find out who, between Player 1 and Player 2, will be the last player ... Read More

In this article, we'll delve into an intriguing problem related to arrays and string manipulation in C++. The problem we're examining today is "Find the GCD (Greatest Common Divisor) of an array made up of numeric strings". This problem is a great way to hone your skills in string manipulation, arrays, and number theory. Problem Statement Given an array of strings where each string represents a positive integer, our task is to find the Greatest Common Divisor (GCD) of all these integers. C++ Solution Approach We'll convert each string to an integer and calculate the GCD of all these integers. ... Read More

In the information age, it's common to encounter strings of text that contain URLs. As part of data cleaning or web scraping tasks, we often need to extract these URLs for further processing. In this article, we'll explore how to do this using C++, a high-performance language that offers fine-grained control over system resources. Understanding URLs A URL (Uniform Resource Locator) is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. In layman's terms, a URL is a web address. Problem Statement Given a string that contains several URLs, ... Read More

In today's article, we will dive deep into a unique problem related to string manipulation in C++. The problem is "Digits whose alphabetic representations are jumbled in a given string." This problem can serve as an excellent exercise for enhancing your string manipulation and data structure skills in C++. Problem Statement Given a string, the task is to identify the digits whose alphabetic representations are jumbled within the string. For instance, if the input string is "oentow", it has a jumbled representation of the digit two (t, w, o) and one (o, n, e). C++ Solution Approach To solve this ... Read More

In this article, we will explore the concept of creating a custom Jumble Word Game in C++. Word puzzles are not only entertaining but also a great way to improve vocabulary and cognitive skills. We will walk you through the process of designing and implementing the game using C++ and provide a test case example to illustrate how the game works. Custom Jumble Word Game The objective of the Jumble Word Game is to unscramble a given set of letters to form a valid word. Players are given a jumbled word, and they have to rearrange the letters to form ... Read More

In this article, we will examine the concept of counting the ways to place all characters of two given strings alternately. This problem can appear in programming challenges and interviews, and mastering the solution will help you improve your string manipulation and algorithm skills. We will explain the problem statement, discuss the algorithm used, present the C++ implementation, and provide a test case example to illustrate the solution. Problem Statement Given two strings s1 and s2, find the number of ways to place all the characters of both strings alternately, such that the characters from s1 and s2 are placed ... Read More

In this article, we'll discuss the problem of counting the number of substrings in a given string that consist of a single distinct character. We'll explore an efficient algorithm for solving this problem and provide C++ code to implement it. Problem Statement Given a string S, the task is to count the number of substrings that are made up of a single distinct character. For example, if the input string is "aaaaa", then the output should be 15, because there are 15 substrings that consist of a single distinct character. The substrings are "a", "a", "a", "a", "a", "aa", "aa", ... Read More

In this article, we will be delving into a unique and fascinating problem from the realm of computer science - "Counting M-Length Substrings Occurring Exactly K Times in a String". This type of problem is often encountered during programming competitions and interviews. Before we get started, let's define what we're dealing with − Substring − A continuous sequence that is found within another string. M-Length − The length of the substring that we're interested in. K Times − The exact number of times the substring should appear in the original string. Algorithm Explanation To solve this problem, we will leverage the power of hash ... Read More