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Introduction Within the world of technology, where communication and information trade happens at the speed of light, space names play an urgent part. They serve as human-readable addresses that permit us to get to websites, send emails, and connected with different online administrations. Behind the scenes, a basic handle known as DNS (Domain Name System) is capable of deciphering these space names into their comparing IP addresses. Be that as it may, this system's significance too makes it a potential target for malevolent exercises, one of which is DNS enumeration. What is DNS Enumeration? DNS enumeration is a method utilized ... Read More
In this article, we'll discuss an engaging problem related to strings and sequences. The problem statement is "Generate a sequence determined by the characters of a given string". This problem is an excellent way to enhance your skills in string manipulation and sequence generation. Problem Statement Given a string, the task is to generate a sequence where each character of the string is replaced by its position in the English alphabet. Solution Approach Our approach to this problem is straightforward. We will iterate over the string and for each character, we will calculate its position in the English alphabet. The ... Read More
We can use import different data files in pandas like csv, excel, JSON, SQL etc. In pandas library, we have different ways to import the csv files into our python working environment. CSV is abbreviated as Comma Separated Values. This is the file format most widely used in the Data Science. This stores the data in a tabular format where the column holds the data fields and rows holds the data. Each row in the csv file is separated by a comma or by a delimiter character which can be customized by the user. We have to use the pandas ... Read More
Flip the String by either swapping given characters or rotating it horizontally for Q queries is a fascinating problem that involves manipulating a string based on a series of queries. In this tutorial, we delve into this problem and provide a solution using C++. The problem statement revolves around a string of characters and a set of queries, each containing instructions to swap specific characters or perform a horizontal rotation. Our objective is to determine the final configuration of the string after applying all the queries. Through this tutorial, we will explore the intricacies of the ... Read More
The task of flipping 0s in a binary string while considering their adjacent characters has practical applications in various domains. In this tutorial, we delve into the problem of modifying a given binary string by repeatedly flipping the 0s that have different adjacent characters. Specifically, we aim to solve this problem within the context of C++ programming. The solution involves iteratively scanning the string and applying the necessary flips based on the provided logic. By leveraging the string manipulation capabilities, we can efficiently transform the binary string by flipping 0s K times, ensuring that each flip adheres to the ... Read More
In this problem, we will construct two palindromic strings using the given string’s characters. We can use the character’s frequency to solve the problem. We can construct two new palindromic strings only if both characters’ frequencies are even or if any characters have an even frequency and others have an odd frequency. Problem statement − We have given a string alpha containing two different characters and a size equal to N. We need to construct two palindromic strings using the characters of the alpha, which are not the same as the given string alpha. Sample Examples After incrementing each character ... Read More
When working with natural language processing or text analysis, it is often necessary to search for specific words or phrases within a larger body of text. One common task is finding all the words in a sentence that start with a given prefix. In this article, we will explore how to accomplish this task. Algorithm Read in the input sentence and prefix. Tokenize the input sentence into individual words. For each word in the sentence, check if it starts with the given prefix. If the word starts with the prefix, add it to the list of words that match. ... Read More
In this article, we'll examine an interesting problem from the field of string manipulation and game theory: "Find the player with the least 0s after emptying a binary string by removing non-empty substrings". This problem explores the concept of competitive game playing between two players using binary strings. Our goal is to identify the player who ends up with the least number of 0s after the game ends. We'll discuss the problem, provide a code implementation, and clarify the concept with an example. Understanding the Problem Statement Two players are given a binary string, and they play a game in ... Read More
When working with binary strings, 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. 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 players play optimally, determine ... 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 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 we ... Read More