Here, we require to manipulate the binary string so that it doesn’t contain any consecutive zeros. If we find consecutive zeros, we need to change any zero to 1. So, we require to count the total number of 0 to 1 conversion we should make to remove all consecutive zeros from the string. Problem statement − We have given a binary string ‘str’ containing only 0 and 1. We require to find the minimum number of flips required so that the resultant string doesn’t contain any consecutive zeros. Sample Examples Input – 0101001 Output – 1 Explanation ... Read More

In this problem, we require to find the longest non-increasing subsequence of the given string. The meaning of non-increasing is either character should be the same or in decreasing order. As binary string contains only ‘0’ and ‘1’, the resultant string should start with ‘1’ and end with ‘0’, or start and end with either ‘0’ or ‘1’. To solve the problem, we will count prefix ‘1’s and suffix ‘0’ at each position of the string and find the maximum sum of prefix ‘1’s and suffix ‘0’s. Problem statement − We have given binary string str. We need to ... Read More

In this problem, we need to find the longest subset containing at most A 0s and B1s. All we need to do is find all possible subsets using the array elements and find the longest subset containing maximum A 0s and B1. In this tutorial, first, we will learn the recursive approach to solve the problem. After that, we will optimize the code using the dynamic programming approach. Problem statement − We have given an array containing N binary strings. Also, we have given A and B integers. We need to make the longest subset using the given binary strings ... Read More

In this tutorial, we require to construct a binary string of length K such that it should contain ‘1’ at the ith index if a subset-sum equal to I is possible using array elements. We will learn two approaches to solving the problem. In the first approach, we will use a dynamic programming approach to check whether the subset sum equal to index ‘I’ is possible. In the second approach, we will use a bitset to find all possible sums using array elements. Problem statement − We have given an array containing N integers. Also, we have given integer M ... Read More

Continuous character sequences known as substrings of 0s and 1s can be created by selecting zero or more characters from the original string in any order without skipping any of them. Take for instance the string "0101." The sub strings that are followed up this text are: 0, " "1, " "01, " "10, " "010, " "101, " and "0101." The unfilled string is likewise a substring of all strings since it very well might be made by picking precisely 0 characters from the beginning string. As a result, in this instance "" is also a substring of "0101". ... Read More

In this problem, we need to split the given string in such a way that the third substring can be a substring of the first two substrings. Let’s think about the solution. The third string can be a substring of the first two string only if the first two string contains all characters of the third string. So, we need to find at least one character in the given string with a frequency of more than 3, and we can take the third substring of the single character. Problem statement − We have given a string str containing the N ... Read More

In this problem, we need to sort the given binary string in decreasing order by removing only non-adjacent elements. To solve the problem, we require to remove all zeros which are placed before ones in the binary string. If we find two consecutive ones after two consecutive zeros at any position in the string, it means we can’t sort the string in decreasing order. Otherwise, we can sort it out in each case. Problem statement − We have given binary string str with a length equal to N. We need to check whether we can sort the given string in ... Read More

In this problem, we need to convert the first binary string to the second binary string by flipping the prefix of the first string. To get the minimum prefix flip, we require to iterate through the end of the string, and if we find mismatched characters in both strings, we need to flip the prefix of the first string. Problem statement − We have given two different binary strings called first and second. The length of both binary strings is equal, which is N. We need to convert the first string into the second string by flipping the prefixes of ... Read More

A synchronization challenge prevalent in concurrent computing is better known as producer-consumer problem. Given that several threads or processes aim to coordinate their individual actions when accessing a shared source; this problem entails an intricate task of communication accompanied by balanced execution procedures. The discussion today will shed light upon understanding the concepts that underlie this difficulty whilst realizing its cruciality within contemporary computer science frameworks - specifically within C++ implementation practices. Understanding the Producer-Consumer Problem Definition and Purpose The solution for resolving challenges presented by the producer-consumer problem comes from clear delineation of responsibilities between those tasked with producing ... Read More

In computer programming, it is often necessary to manipulate binary strings and find optimal solutions for various problems. One such problem is to maximize the subarrays of 0s of a specific length, X, in a given binary string. Before we proceed further, it's essential to acknowledge that there exists a restriction - the string permits modification for just one '1'. Let's delve into an effective methodology to overcome this obstacle by applying C++. Syntax Before diving into the codes ahead its crucial to clarify the syntax of the method we'll be utilizing. int maxSubarrays(string binaryString, int X); Algorithm Here ... Read More