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Articles on Trending Technologies
Technical articles with clear explanations and examples
Lexicographically Largest String With Sum Of Characters Equal To N
Problem Statement We have given a positive integer num. We need to find the lexicographically largest string of lowercase alphabetical characters such that the sum of all characters of the string is equal to num. Here, ‘a’ = 1, ‘b’ = 2, ‘c’ = 3, ‘d’ = 4, …., ‘z’ = 26. We need to use the ‘z’ characters at the string's start to create the largest lexicographical string. At last, we need to use the last character according to the num % 26 value. Sample Examples Input num = 30 Output ‘zd’ Explanation The ‘zd’ is the ...
Read MoreDistinct Numbers Obtained By Generating All Permutations Of a Binary String
Problem Statement We have given binary string str of length N. We need to find all permutations of the string, convert them to the decimal value, and return all unique decimal values. Sample Examples Input str = ‘1’ Output [1] Explanation All permutations of the ‘1’ is only ‘1’. So, the decimal value related to ‘1’ equals 1. Input str = ‘10’ Output [1, 2] Explanation The permutations of ‘10’ are only ‘01’ and ‘10’, equivalent to 1 and 2, respectively. Input ‘101’ Output [3, 5, 6] Explanation All possible permutations of ‘101’ are ...
Read MoreCount Intervals That Intersects With a Given Meeting Time
Problem Statement We have given a two-dimensional array containing the pairs of starting and ending times for time intervals in the 12-hour format. Also, we have given string str in the 12-hour time format. We need to find a total number of intervals which included the time represented by str. Sample Examples Input arr[][2] = {{“12:02:AM”, “10:55:PM”}, {“12:51:AM”, “11:40:AM”}, {“01:30:AM”, “12:00:PM”}, {“11:57:PM”, “11:59:PM”}}, str = “2:30:AM” Output 3 Explanation The time “2:30:AM” intersects the first three intervals. Input arr[][2] = {{“01:02:PM”, “10:55:PM”}, {“01:30:AM”, “11:00:AM”}}, str = “11:30:PM” Output 0 Explanation The ...
Read MoreHow to Resize Matplotlib RadioButtons
Matplotlib is a popular data visualization library in Python that provides a wide range of tools for creating interactive plots and charts. One of the interactive components offered by Matplotlib is the RadioButtons widget, which allows users to select a single option from a group of mutually exclusive choices. While working with RadioButtons, you may encounter situations where you need to resize them to better fit your plot or application layout. In this article, we will explore different methods to resize Matplotlib RadioButtons. Syntax radio_buttons.ax.set_position([left, bottom, width, height]) Here, radio_buttons refers to the instance of the RadioButtons widget. ...
Read MoreCheck If a String Can Be Made Palindromic By Swapping Pairs Of Characters From Indices Having Unequal Characters In a Binary String
Problem Statement We have given string str and a binary string B. The length of both strings is equal to the N. We need to check if we can make string str palindromic by swapping the characters of it multiple times at any pair of indices that contains unequal characters in string B. Sample Examples Input str = ‘AAS’ B = ‘101’ Output ‘YES’ Explanation We can swape the str[1] and str[2] as B[1] and B[2] are not equal. The final string can be ‘ASA’. Input str = ‘AASS’ B = ‘1111’ Output ‘No’ Explanation ...
Read MoreCreate a string of specific length in C++
In C++, the string is a collection of various alphanumeric and special characters. We can create a string using the ‘string’ data type in C++. Problem Statement We have given a length of the string and one single character, and we require to generate a string of a given length containing the single character. In C++, we can define the string of a particular length by hard coding the values, but when we require to generate a string of different lengths and use the given character, we require to use the below approaches. Sample Examples Here are the sample ...
Read MoreCheck if uppercase characters in a string are used correctly or not
Problem Statement We have given a string ‘str’, containing the alphabetical characters in uppercase or lowercase. We require to check if uppercase characters are used correctly in the string. Followings are the correct way to use uppercase characters in the string. If only the first character is in uppercase, the other characters are in lowercase. If all characters of a string are in lowercase. If all characters of the string are in uppercase. Sample examples Input "Hello" Output "valid" Explanation In "Hello", only the first character is in uppercase, and others are in lowercase, so it ...
Read MoreConverting Integer Data Type to Byte Data Type using Typecasting in Java
In the Java programming language, the process of converting one data type to another is known as typecasting. At times, it becomes necessary to convert an integer data type to a byte data type. However, it is crucial to have an understanding of the byte data type's range. The byte data type is an 8-bit signed two's complement integer that has a minimum value of -128 and a maximum value of 127. If the integer value falls within this range, then it can be directly typecast to a byte variable. However, if the integer value is not within this range, ...
Read MoreXSL Processor in Java
The XSLT (eXtensible Stylesheet Language Transformations) Processor is a piece of software that processes XML documents and applies transformation rules to create new XML documents or other output formats like HTML, plain text, or PDF. With the use of templates, element selection and manipulation, and operations like sorting and filtering, developers can build rules for converting XML documents into various formats using the powerful language known as XSLT. An XSL processor that can be used to implement XSLT transformations is built into the popular programming language Java for processing XML documents. Developers can read, parse, and process XML documents, apply ...
Read MoreCheck whether two Strings are Anagram of each other using HashMap in Java
Anagram Strings are those strings that have the same characters in each of the strings only the order in which they are arranged changes. In other words, a string is an anagram string if it forms a meaningful word after rearranging the characters of the other string. Some examples of anagram strings are “cat and act”, “care and race”. Both of them have the same characters and their frequencies. In this article, we will be discussing the approach to check whether the two strings are anagrams of each other or not using the HashMaps in Java. Problem Statement ...
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