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In this article, we will be discussing an intriguing problem related to string manipulation and binary numbers in C++. The problem we will be tackling is "Check if two binary strings can be made equal by swapping 1s occurring before 0s". This problem is a great way to enhance your understanding of strings, binary numbers, and algorithmic thinking. Problem Statement The task is to determine if two binary strings can be made equal by swapping 1s that occur before 0s in the strings. C++ Solution Approach The approach to solve this problem is to keep track of the number of ... Read More
Palindromes are a fascinating topic in computer science and programming. A palindrome is a word, phrase, number, or other sequences of characters that read the same forward and backward, ignoring spaces, punctuation, and capitalization. In this article, we will investigate a unique problem: how to determine if substrings from three given strings can be concatenated to form a palindrome. This problem is a common interview question and can be solved using various techniques, including string manipulation, hashing, and dynamic programming. Problem Statement Given three strings, the task is to check if it's possible to select substrings from each of the ... Read More
In this problem, we will check if it is possible to divide the given numeric string into two disjoint subsequences such that sum(sub1) * sum(sub2) becomes odd. We need to divide the string into two subsequences such that the sum of the digits of both becomes odd to get the odd multiplication result. Problem statement − We have given a string num_string containing the numeric characters. We need to check whether we can divide the string into two subsequences such that the multiplication of the sum of both subsequences becomes odd. Also, it is given that every character of the ... Read More
In this article, we delve into an interesting problem from the world of binary string manipulation: "Check if a given number contains only '01' and '10' as substrings in its binary representation". This problem challenges us to verify whether a number's binary representation contains only the substrings '01' and '10'. We'll discuss the problem in detail, offer a C++ code implementation, and illustrate the concept with an example. Understanding the Problem Statement Given a number, the task is to check if its binary representation contains only '01' and '10' as substrings. In other words, we need to verify if the ... Read More
In this article, we will discuss how to check if the characters of each word in a given string can be rearranged to form an Arithmetic Progression (AP). We will also implement the solution in C++ and provide an example to illustrate the working of the code. Arithmetic Progression (AP) An Arithmetic Progression (AP) is a sequence of numbers in which each term after the first is obtained by adding a constant d to the preceding term. The constant d is called the common difference. For example, the sequence 1, 3, 5, 7, 9 is an Arithmetic Progression with common ... Read More
In this article, we'll delve into an intriguing problem in the field of string manipulation: how to check if the characters of a given string can be made non-decreasing by replacing '?' characters. This problem provides an excellent opportunity to hone your skills in string manipulation and condition checking in C++. Problem Statement Given a string consisting of alphabetic characters and question marks (?), determine whether the characters can be made non-decreasing by replacing the '?'s. The non-decreasing condition means that for every two adjacent characters in the string, the ASCII value of the second character is not less than ... Read More
In this article, we will explore the problem of checking whether all strings of an array can be made the same by interchanging characters. We will first understand the problem statement and then investigate both the naive and efficient approaches to solve this problem, along with their respective algorithms and time complexities. Lastly, we will implement the solution in C++. Problem Statement Given an array of strings, determine if all strings can be made the same by interchanging characters. Naive Approach The naive approach is to sort the characters of each string in the array and then compare each sorted ... Read More
In computer science, hexadecimal is a base-16 number system. It uses 16 distinct symbols, including the ten decimal digits from 0 to 9 and the six letters A, B, C, D, E, and F to represent numbers from 0 to 15. In this article, we will discuss how to check if a string represents a hexadecimal number or not. Problem Statement Given a string, the task is to check if it represents a valid hexadecimal number or not. Approach We can solve this problem by iterating over the characters in the string and checking if they belong to the set ... Read More
Welcome to another in-depth guide on a fascinating problem-solving topic in C++. This time, we will be tackling the problem of determining if a string can be divided into two substrings, each containing an equal number of vowels. This problem is an excellent exercise for honing your skills in string manipulation and vowel counting. Problem Statement Given a string, our objective is to determine if it can be partitioned into two non-empty substrings such that both substrings have an equal number of vowels. The vowels in the English alphabet are 'a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'. ... Read More
The problem statement says that we have to find the minimum value present in each record value list. So in this article we will see different ways to find the minimum in each record. Understanding the problem In the given problem we are required to find the minimum value of each subarray. For example: let’s say we have an array as [[8, 10, 12], [12, 14, 16], [17, 18, 19]], so in this example we can see the minimum values for every subarray are 8, 12, 17 as these arrays are in a sorted form. So the required result should ... Read More