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In this problem, we have given a binary string of length 4*N, and we need to flip zeros of the binary string so that any pair of indices containing ‘1’ should not be co-prime or divisible by each other. Here, we can solve the problem by observation. The string contains 4*N characters. We can flip the N characters from the last, which are at the even index. Problem statement – We have given an integer N and a binary string of the length 4*N containing all zeros initially. We need to flip ‘0’ to ‘1’ in such a way so ... Read More
In this problem, we need to find the total time required to complete all tasks according to the given condition. We can use the map data structure to solve the problem. We can keep tracking the last performed time for each task, and if the time interval is less than K, we can increment time units accordingly. Problem statement – We have given a string task containing alphabetical characters of length N. Each character represents a task, and we need one unit of time to perform the tasks. Also, the condition is that each task should be performed at ... Read More
We have given two strings and need to convert one string to another by click increments, and we can increment characters by either 1 or k in the single operation. To solve the problem, we need to make all characters of the first string the same as a second character by performing the cyclic increment operations. If the character at the same index in both strings is the same, we don’t need to perform any increment operation. Problem statement – We have given two strings named first and second containing the uppercase alphabetical characters. The length of both strings ... Read More
Both HTML (HyperText Markup Language) and DHTML (Dynamic HTML) offer unique characteristics. DHTML mixes HTML, CSS, and JavaScript to introduce dynamic and interactive components, whereas HTML defines web page structure statically. Without having to reload the page, DHTML enables user interaction, animations, and real-time content modifications. DHTML's dynamic characteristics, in contrast to HTML's static nature, improve site construction and offer more interesting and interactive web experiences. HTML Websites rely heavily on HTML (HyperText Markup Language) to efficiently organise and deliver internet content. It defines headings, paragraphs, images, and links using a variety of tags, allowing for the proper structuring of ... Read More
HTML login forms are essential components of websites, giving clients a secure way to access limited content or perform verified activities. They serve as the front-end interface where clients input their accreditations, such as usernames and passwords, to get to particular assets. HTML login forms play a significant role in client confirmation and information security. In any case, they are too helpless to different hacking procedures in the event that they are not legitimately secured. Understanding the centrality of securing login forms is fundamental to defending client information and avoiding unauthorized access. Executing vigorous security measures, such as secret ... Read More
The secret to making a dynamic and engaging website is the integration of HTML and JavaScript, A skill important for the developers. The static web pages of HTML are no doubt popular and a stepping stone for beginners, but dynamic and engaging web pages are the ones users prefer. To be able to interact with the website and consume its content is an experience only dynamic web pages can provide. Integration of JavaScript code into an HTML page is a vital skill for web developers. JavaScript is a potent scripting language that allows developers to add dynamic functionality and interaction ... Read More
In this problem, we need to find the maximum length of the subsequence containing the single character by increasing the multiple characters by, at most, k times. We can use the sliding window approach to solve the problem. We can find the maximum length of any window to get the result after sorting the string. Problem statement – We have given string str containing lowercase alphabetical characters. Also, we have given the positive integer k. After performing the at most k increment operations with multiple characters of the given string, we need to find the maximum length of the ... Read More
In this problem, we need to generate a lexicographically smallest string using the first K characters of alphabets so that it doesn’t contain any repeated substring. We can generate a string so that all substrings of length 2 are unique. So, if all substrings of length 2 are unique, all substrings of length 3 or more are also unique. Problem statement – We have given a positive integer K. We need to generate a new string using the first K alphabets so that generated string can’t contain any repeated substring of length 2 or more and is lexicographically smallest. Sample ... Read More
In this problem, two players play a game by removing the string from their array, which is not already removed from the opponent's array. We need to decide the winner of the game. We can solve the problem using two different approaches. In the first approach, we can store the common strings with the set data structure. In the second approach, we can use a set to store already removed strings from both arrays. Problem statement – We have given two arrays called arr and brr. The size of the array is N and M, respectively. We need to decide ... Read More
In this problem, we have given a string suggesting the moving direction and starting coordinates. We need to find the revisited positions. We can use the set or map data structure to store the previously visited coordinates. We can say that position is revisited if we find any pair in the set or map. Problem statement – We have given a string str of length N containing the ‘L’, ‘R’, ‘U’, and ‘D’ characters. Also, we have given X and Y integers representing the starting position. We need to find the total number of coordinates revisited while following the path ... Read More