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Articles by Shubham Vora
Page 5 of 80
Check if String can be divided into two Subsequences so that product of sum is odd
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 MoreHow to use Hashmap in TypeScript?
The Hashmap is the one kind of data structure that stores the key-value pairs of the different data. Like other programming languages, TypeScript also contains a built-in map data structure. In JavaScript, we can't define the key or value type that needs to be stored in the map. So, we need to create a map of the generic type. In TypeScript, we can define the type of the key and value to be stored in the map. Syntax Following is the syntax create the map in TypeScript − let hashMap = new Map(); Parameters key_Type − It is ...
Read MoreMaximum count of unique index 10 or 01 substrings in given Binary string
In this problem, we will count the maximum number of 10 and 01 pairs that can be formed using the given binary string. To solve the problem, we can check the number of 10 and 01 pairs we can form using adjacent characters without sharing any characters in two pairs. Problem Statement We have given a bin_str binary string. We need to count the maximum number of 10 and 01 pairs we can make using the adjacent characters only. Also, we can use one character in any single pair. Two pairs can't share a single character. Sample Examples Input ...
Read MoreC++ Program to Find the Mth element of the Array after K left rotations
In this problem, we need to print the element from the given index after rotating the array for K times. This problem teaches us to find the element from the particular index in the rotational array. At first sight, the solution that comes to mind is that rotate the array for K times and access the Mth element, but we will also learn to access the Mth element in the rotational array without rotating the array. Problem Statement We have given arr[] array containing N numbers. Also, we have given the positive integer M and K. We need to rotate ...
Read MoreJava Program to Find the Mth element of the Array after K left rotations
In this problem, we will rotate the array by K left rotations and find the Mth element in the rotated array. The naïve approach to solve the problem is to rotate the array by K left rotation and take the element from the M – 1 index. The optimized approach is to find the final index value in such a way that the final index is the M – 1 index of the rotated array. Problem Statement We have given a nums[] array containing the positive integers. We have also given the positive integer K and M. We need ...
Read MoreFind index of pair among given pairs with just greater average
In this problem, we will find the index value for each pair such that the resultant pair's average value is just greater than the current pair's average value. To solve the problem, we will use the sorting algorithm and binary search technique. We will use a sorting algorithm to sort the array based on the pair's average value and a binary search algorithm to search a pair with a greater average value from the sorted array. Problem Statement We have given a pairs[] array containing the N pairs of positive integers. It is also given that the first element of ...
Read MoreCount unique Strings by replacing Consonant with closest vowel and vice versa
In this problem, we will count the number of unique strings we can generate by replacing each vowel with the closest consonant and each consonant with the closest vowel. We can find the number of choices for each character of the string to replace the current character with other characters. After that, we can multiply the number of choices of each character to get the answer. Problem Statement We have given an alpha string. We need to count the total number of different strings we can generate from the given string by performing the below operations on each character of ...
Read MoreCan String be considered as a Keyword?
Keywords are important in any programming language, as they are reserved words with a particular predefined meaning. The keywords are used to define the variables, function, and class, change the program's control flow, traverse the list, etc. When we talk about the 'String', it is a fundamental data type to represent a series of characters. Some programming languages refer to the 'String' as a class, and some programming languages refer to the 'String' as a keyword. In this tutorial, we will explore the use of the 'String' word in the programming language. C/C++ The C or C++ programming languages are ...
Read MoreHow to sort strings in JavaScript?
The sorting string is to arrange strings in the dictionary or alphabetical order. It is usual to sort the array of strings while developing applications using JavaScript. In this tutorial, we will learn to sort strings in JavaScript. For example, string sorting is very useful here if you got some data from the API and want to show that data in the sorted order. Here, we will learn to sort strings using the built-in methods and various naïve approaches. Use the sort() method to sort strings In JavaScript, sort() is the built-in method we can use with the array. Generally, ...
Read MoreExtract a number from a string using JavaScript
In JavaScript, there are multiple ways to extract a number from a string. One way is to use the match() method and a regular expression to search for all numeric digits in the string. Another way is to use the replace() method and a regular expression to remove all nonnumeric characters from the string, leaving only the numbers. Let’s understand each of the methods with the help of some examples. Using the match() method and regular expression The regular expression is one kind of search pattern which we can create by combining multiple alphabetic and special characters. We can ...
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