Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
Alternate Fibonacci Numbers in C++
The Fibonacci sequence starts from 0 and 1, and each number is the sum of the previous two. In this problem, we are given a number n, and we need to print the first n numbers from the Fibonacci series, but only the numbers at alternate positions (like 0th, 2nd, 4th, and so on). Let's look at some example scenarios to understand it clearly: Scenario 1 Input: n = 7 Output: 0 1 3 8 Explanation: The first 7 Fibonacci numbers are 0 1 1 2 3 5 8. If we pick alternate numbers (index 0, 2, ...
Read MoreOrder of evaluation in C++ function parameters
In C++, when we pass multiple arguments to a function, a common question arises, in what order are these arguments evaluated? Is it from left to right, right to left, or does it depend on the compiler? In this article, we will learn how function parameter evaluation works in C++, why the order of evaluation is important, and how it can vary across different compilers. Is the Order of Evaluation Defined in C++? The C++ standard does not guarantee a fixed order of evaluation for function arguments. This means compilers are free to evaluate arguments from left to ...
Read MoreJava Program to Get the middle element of LinkedList in a single iteration
The java.util.LinkedList class represents a linked list in Java, specifically a doubly-linked list, i.e., we can traverse through the list either from the beginning or from the end, whichever is closer to the specified index. We can create and perform various operations on a linked list using the methods provided by this class.Retrieving the Middle Element of a LinkedList In this article, we will understand how to find the middle element of a LinkedList using Java. We will use the following ways to do so: Using a While Loop Using size() ...
Read MoreCan we call a method on \"this\" keyword from a constructor in java?
The “this" keyword in Java is used as a reference to the current object within an instance method or a constructor. Using this, you can refer to the members of a class, such as constructors, variables, and methods. Calling a Method using "this" From a Constructor Yes, as mentioned, we can call all the members of a class (methods, variables, and constructors) from instance methods or constructors. Example In the following Java program, the Student class contains two private variables, name and age, with setter methods and a parameterized constructor that accepts these two values. From the constructor, we are ...
Read MoreAbsolute Difference of all pairwise consecutive elements in an array (C++)?
An array in C++ is a data structure used to store multiple values of the same type in a contiguous block of memory. To know that how values shift from one index to the next, a common and practical technique is to compute the absolute difference between each pair of consecutive elements. Absolute Difference The absolute difference is the positive distance between two numbers, regardless of which one is larger. It is computed using the abs() function from the library. Absolute difference between a and b is denoted as |a - b|. For example, |7 - 3| = ...
Read MoreC++ code to find maximum fruit count to make compote
In this article, we will explain maximum fruit count to make compote problem and implement a C++ program to solve it. The problem involves finding the maximum number of fruits that can be used to make a compote, given certain constraints. Let's break down the problem statement below. Maximum Fruit Count to Make Compote You are given a list of fruits, say a apples, b bananas, and c cherries, where a, b, and c are the counts of each type of fruit. Your task is to make a compote using these fruits such that the apples, bananas and cherries ...
Read MoreHow to compare float and double in C++?
In C++, floating-point numbers are used to represent decimal values. The most commonly used floating-point types are float and double. These data types differ in their size, precision, and use cases. Understanding how to use and compare them correctly is important for accurate computations. Understanding Float and Double Precision The float is a 32-bit single-precision floating-point type that can store approximately 7 decimal digits, while double is a 64-bit double-precision type that offers about 15 to 16 digits of precision. Due to these differences, double is generally preferred for higher accuracy in scientific and financial calculations. Example: Printing ...
Read MoreAll unique triplets that sum up to a given value in C++
Unique Triplets that Sum up to a Given Value In this article, we will discuss different approaches to find all the unique triplets that sum up to the given value. Before that, first understand the given problem. We have been given an integer array with N elements, along with a target value. Our task is to find unique or distinct triplets (i.e., three numbers) from an array, whose sum is the same as the target value. Let's take a scenario to understand the problem in a better way: Scenario 1 Input: arr ={1, 2, 3, 4, 5, 6, 7} ...
Read MoreAlmost Perfect Number in C++
Almost Perfect Number in C++ Almost Perfect Number is a positive integer n for which the sum of all its positive proper divisors (excluding the number itself ) is equal to n-1. (i.e., one less than the number n). It is also known as the least deficient number or slightly defective number. A positive proper divisor is a divisor of a number, excluding the number itself. For example, for n = 6; 1, 2, 3 are positive proper divisors but 6 itself is not. In Mathematics, we say A number n is almost perfect if: σ(n)-n = n-1 by ...
Read MoreAliquot sum in C++?
Aliquot sum in C++ Aliquot sum of a positive integer n is the sum of all proper divisors of n. A positive proper divisor is a divisor of a number, excluding the number itself. For example, for n = 6; 1, 2, 3 are positive proper divisors but 6 itself is not. Scenario 1 Input: n = 20 Output: 22 Explanation: Proper divisors of 20 are: 1, 2, 4, 5, 10 Sum of proper divisors are: 1 + 2 + 4 + 5 + 10 = 22 So, aliquot sum of 20 is : 22 Scenario 2 Input: 15 ...
Read More