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Page 23 of 2107
Program for cube sum of first n natural numbers in C++
In this article, We implement a C++ program to print sum of series like 13 + 23 + 33 + 43 + .......+ n3 till the nth term. Given an integer n, calculate the sum of the cubes of the first n natural integers. So, we have to cube of 'n' natural integers and sum the results. Example Scenario Let's understand the following example scenario: Input: n = 4 Output: 100 Explanation: 13 + 23 + 23 + 43 Another example scenario: Input: n = 5 Output: 225 Explanation: 13 + 23 + 23 + 43 + 43 ...
Read MoreC++ Program to Implement B Tree
In C++, a Binary tree is a generalization of the Binary Search Tree (BST). A B-tree can have more than two children. It is also known as a balanced tree data structure that maintains sorted data and allows searches, sequential access, insertions, and deletions in logarithmic time. It is optimized for a system that reads and writes large blocks of data. Properties of B-tree As we discussed in the introduction B-tree is self-balanced tree where a node can have multiple children. It maintains the balance by making sure that all leaf nodes are at the same level. Following is the properties ...
Read MoreC++ mutable keyword?
The mutable keyword in C++ is a storage class specifier. It enables non-static, non-const, and non-reference data members (i.e., mutable data member) of a class to be changed even when the object containing them is declared constant. Mutable data members are those members whose values can be changed in runtime even if the object is of constant type. It is just the opposite of a constant. What is Need of Mutable? Sometimes, it is necessary to modify one or more data members of a class/struct through the constant function, even if you do not want the function to update another ...
Read MorePython program for removing n-th character from a string?
The problem statement is to remove the nth character from the given string. Let's understand with an example. Consider my_string = "Tutorialspoint". The given value of n is 6; then we need to remove the 5th character from the string. Because the index value starts from zero. And it should result in "Tutorialspoint". Removing nth Character using a for Loop The for loop can be used to remove the n-th character from a string. In this approach, we iterate through each index of the string and print the characters. If the index value is equal to the given (n-1)th value, we ...
Read MoreHow to return an object from a function in Python?
In Python, we can return an object from a function, using the return keyword, just like any other variable. The statements after the return will not be executed. The return keyword cannot be used outside the function. If the function has a return statement without any expression, then the special value None is returned. In the following example, the function returned the sum of two numbers - def Sum(a, b): return a+b my_var1 = 23 my_var2 = 105 result_1 = Sum(my_var1, my_var2) # function call print(result_1) Following is an output of ...
Read MorePython program for Modular Exponentiation
What is Modular Exponentiation? To calculate Modular exponentiation, we need to raise a base to an exponent and then calculate the modulus of the result. This includes 3 integers: base, exponent, and modulo. Following is the syntax of the modular exponentiation in Python - (base**exponent) % modulo For instance, consider (2^5) % 5, which indicates 2 raised to the power of 5, which results in 32; When the modulo operation is performed, it returns the remainder, i.e., 32 % 5 is 3. Modular Exponentiation using Recursive Function A function that calls itself is known as a recursive function. Following is ...
Read MoreCreate Word Cloud using Python
A "word cloud" is a visual representation of text data, where the size of each word indicates its frequency or importance within the dataset. It helps us to identify the most common and important words in a text. It is typically used to describe/denote big data in a word. In this article, we will create a word cloud on the Python programming language, and the data is accessed from Wikipedia. Modules to create a Word Cloud in Python Following are the modules required to create a word cloud in Python : Install wordcloud Before installing the word cloud module, you have ...
Read MoreHow to convert HTML to PDF using Python
In general, we look at some external websites to convert our files to PDF format; instead, we can convert them using Python on our own. In this article, we will understand the steps to convert the HTML (Hyper Text Markup Language) to PDF using Python code. Steps to convert HTML to PDF Following are the steps to convert the HTML file to PDF using Python: Step 1: Installation Download the pdfkit library by running the following command in the command prompt: pip install pdfkit Step 2: Download wkhtmltopdf Following are the steps to download wkhtmltopdf: ...
Read MoreAdd Two Numbers in Python
Adding two numbers in Python is one of the most basic tasks, where we need to combine their values to get a total. In this article, we will see different ways to add two numbers in Python. Using Arithmetic Operator To add two numerical values in Python, we can use the addition operation, represented by the "+" symbol. It is one of the arithmetic operators in Python that performs the addition operation. Example Here is the basic example that adds the two numbers using the addition operator (+). # Assign values to the variables a = 7 b = ...
Read MoreCheck if both halves of the string have same set of characters in Python
In Python, a string is one of the data structures that is a sequence of characters enclosed within single quotes '' or double quotes "". It is immutable, i.e., once a string is created, it cannot be changed. When we want to check if both halves of the string have the same set of characters in Python, we can follow the steps below - First, based on the length of the string, we have to split the string into two halves. Next, convert each half into a set of characters using set() function. Finally, compare the two sets using ...
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