Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Natural numbers are numbers that start from 1 and include all the positive integers. The following article discusses two possible approaches to compute the sum of the fifth powers of the first n natural numbers. The article discusses the two approaches in detail and compares them with regards to efficiency and intuitiveness. Problem Statement The purpose of this problem is to compute the arithmetic sum of the first n natural numbers, all raised to their fifth power i.e. $\mathrm{1^5 + 2^5 + 3^5 + 4^5 + 5^5 + … + n^5}$ till the nth term. Examples Since n is a ... Read More
A number is considered to be pernicious if the number is a positive integer and the number of set bits in its binary expansion are prime. The first pernicious number is 3, as 3 = (11)2. It can be seen that the number of set bits in the binary representation of 3 are 2, which is a prime number. The first 10 pernicious numbers are 3, 5, 6, 7, 9, 10, 11, 12, 13, 14. Interestingly, powers of 2 can never be pernicious since they always have only 1 set bit. 1 is not a prime number. On the other ... Read More
A number is considered to be an odious number if it has an odd number of 1s in its binary expansion. The first 10 odious numbers are 1, 2, 4, 7, 10, 11, 13, 14, 16, 19, 21. Interestingly, all powers of 2 are odious since they have only 1 set bit. The following article discusses 2 approaches in detail to find whether a number is an odious number or not. Problem Statement This problem aims to check whether the given number is an odious number i.e. it is a positive number with an odd number of set bits in ... Read More
An array(list) of comma-separated values (items) enclosed in square brackets is one of the most flexible data types available in Python. The fact that a list's elements do not have to be of the same type is important. In this article, we will learn a python program to check if any key has all the given list elements. Example Assume we have taken an input dictionary and a list. We will now check whether the values of any key of the input dictionary contain given list elements using the above methods. Input inputDict = {'hello': [4, 2, 8, 1], 'tutorialspoint': ... Read More
In Python, a set is an unordered collection of unique elements, represented by {}. It allows efficient membership testing and eliminates duplicate values, making it useful for tasks such as removing duplicates or checking for common elements between sets. Appending multiple elements to a set in Python is a common operation that involves adding multiple unique elements to an existing set. In this article, we will learn how to append multiple elements in a set in python. Example Assume we have taken an input set and input list. We will now append the input list elements to the input set ... Read More
Strings in Python are sequences of characters used to represent textual data, enclosed in quotes. Checking for almost similar strings involves comparing and measuring their similarity or dissimilarity, enabling tasks like spell checking and approximate string matching using techniques such as Levenshtein distance or fuzzy matching algorithms. In this article, we will learn a Python Program to check for almost similar Strings. Demonstration Assume we have taken an input string Input Input string 1: aazmdaa Input string 2: aqqaccd k: 2 Output Checking whether both strings are similar: True In this example, ‘a’ occurs ... Read More
In this problem, we need to find the last palindrome string in the array. If any string is the same in reading, either we start to read from the start or end, we can say the string is a palindrome. We can compare the starting and ending characters to check whether the particular string is palindromic. Another way to find the palindromic string is to reverse the string and compare it with the original string. Problem statement – We have given an array of length N containing the different strings. We need to find the last palindrome string in the ... Read More
In Python, an element index refers to the position of an element within a sequence, such as a list or string. It represents the location of an element, starting from 0 for the first element and incrementing by 1 for each subsequent element. Assigning keys with the maximum element index means associating unique identifiers or labels with the highest possible index value in a sequence. This approach allows for easy access and retrieval of elements based on their positions using the assigned keys. Example Assume we have taken an input dictionary. We will now find the maximum element in the ... Read More
In Python, a set is an unordered collection of unique elements, represented by {}. It allows efficient membership testing and eliminates duplicate values, making it useful for tasks such as removing duplicates or checking for common elements between sets. In this article, we will learn how to access the K element in a set without deletion in python. Example Assume we have taken an input set and K element. We will now find the index of that K element in an input set using the above methods. Input inputSet = {3, 9, 5, 1, 2, 8} k=5 Output The ... Read More
String consonants refer to the non-vowel sounds produced when pronouncing a string of characters or letters. In this article, we are going to study how to reverse only the consonants in a string without affecting the position of other elements using the following 2 methods in Python: Using append() and join() functions Using pop() function and string concatenation Example Before Reversing : tutorialspoint After Reversing: tunopiaslroitt Algorithm (Steps) Following are the Algorithm/steps to be followed to perform the desired task –. The function checkConsonant(char) is defined to check if a character is a consonant ... Read More