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AWS EC2 is a fundamental building block of AWS that provides scalable and resizable compute capacity in the cloud. It is one of the oldest AWS services launched back in 2008. But what purpose does it serve? Well, AWS EC2 allows users like you and me to rent virtual computers and we can then run our own computer applications on it. So, for example, you have created a nice, beautiful-looking website that you want to host and make it publicly accessible, but you don't have the infra to run it, then you can use the AWS EC2 service and host this website. ... Read More
In this problem, we are given an array of integers, and our task is to calculate the absolute sum of its elements. The absolute sum means the sum of the absolute values of all the array elements. In this article, we are going to learn how to compute the absolute sum of an array's elements using C++. Example 1 Input: arr = {-3, 2, -7, 4} Output: 16 Explanation: The absolute values of the array elements are: | -3 | = 3, | 2 | = 2, | -7 | = 7, | 4 | = 4. The sum of ... Read More
We are given a number N, and we need to calculate the sum of the first N natural numbers. In this article, we are going to learn how we can find the sum of the first N natural numbers in C#. Example 1 Input: N = 3 Output: 6 Explanation − The first 3 natural numbers are: 1, 2, 3 The sum of these numbers is: 1 + 2 + 3 = 6 Example 2 Input: N = 5 Output: 15 Explanation − The first 5 natural numbers are: 1, 2, 3, 4, 5 ... Read More
When we start learning to code, practicing star patterns is one of the best ways to improve logic building. One of the engaging patterns is the triangle pattern. In this article, we are going to learn how to print a Triangle Star Pattern using C++. What is a Triangle Pattern? A triangle pattern is a geometrical arrangement of stars that forms the shape of a triangle. The stars are printed so that if we visualize the pattern as a closed figure, it resembles a triangle. Each row has a different number of stars, increasing as we move downward. The alignment ... Read More
To convert an array to a phone number string in JavaScript can be done by formatting the array elements into the desired phone number pattern. Following are the steps to learn how to convert array to phone number string in Javascript − Ensure that the array has the correct number of elements (usually 10 for a standard phone number). Join the elements of the array into a single string. Format the string into the desired phone number pattern, such as (XXX) XXX-XXXX. Let us understand through ... Read More
In this article, we create a function that can take a string in any format. Such as normal case, snake case, pascal case or any other into camelCase in JavaScript. camelCase is a writing style where each word within a phrase is capitalized, except for the first word, and there are no spaces or punctuation. Let us understand through some sample example of I/O Scenario − Sample Input - const str = 'New STRING'; Sample Output - const output = 'newString'; Converting any case to camelCase in JavaScript Converting any case to camelCase in JavaScript is quite easy. Let's ... Read More
Appending suffixes to numbers in JavaScript is used to add ordinal indicators (like "st", "nd", "rd", and "th") to the end of a number to denote its position in a sequence. This is useful for displaying dates, rankings, or other numeric data. A custom function can be created to append the correct suffix to a given number. The function handles special cases for numbers ending in 11, 12, and 13, and applies the appropriate suffix based on the last digit for other numbers. The task of our function is to ... Read More
Generally, the default behavior of map and multimap map is to store elements is in ascending order. But we can store element in descending order by using the greater function. Map in Descending Order We use a map to store elements in descending order with the help of the greater function. We perform various operations like inserting elements, finding an element, counting occurrences of keys, and removing elements from the map. Functions are used here - m::find() – Returns an iterator to the element with key value ‘b’ in the map if found, else returns the iterator to ... Read More
Sorting a vector in C++ means arranging its elements in a specific order, like ascending or descending. This is a common task when you need to organize data efficiently. C++ provides different ways to sort a vector. In this article, we will look at different ways to sort a vector in C++. Let's look at this example to better understand it: For the vector: V = {5, 3, 8, 1, 2} Sorted Output: {1, 2, 3, 5, 8} For the vector: V = {22, 23, 5, 6, 34} Sorted Output: {5, 6, 22, 23, 34} Approaches to ... Read More
In C++, vectors are commonly used to store dynamic collections of data. Sometimes, we need to copy a vector to manipulate data without affecting the original. In this article, we'll show you the easiest ways to copy a vector in C++, along with examples to show you how it works. Ways to copy a vector in C++ There are different ways to copy a vector in C++, and each method has its own use. We'll cover the following approaches: Using std::copy Using assign() Method By assignment "=" ... Read More