Server Side Programming Articles - Page 2136 of 2650

An array is a collection of elements of the same data type stored in continuous memory locations.In c++ standard library (STL) there are a lot of methods to support the functioning of the array. One of them is an array at() method.The array at() method is used to return the reference of the element at a specific index value.SyntaxThe general syntax for array at() function isarray_name.at(i);ParametersThe function accepts a single parameter which I the index of the element which is to be accessed using the function.ReturnsThe function returns the element whose index is passed at the time of calling it. ... Read More

A complex number is a number that is expressed in the form of a + bi, where a and b are real numbers. i is the imaginary part of number.The argument is the angle between the positive axis and the vector of the complex number. For a complex numberz = x + iy denoted by arg(z), For finding the argument of a complex number there is a function named arg() of a complex number in the complex header file.Syntaxarg(complex_number);ParameterThe function accepts a complex number as input to calculate the value of the argument for that complex number.Returned valueThe function returns ... Read More

The array is a collection of a fixed number of items of the same data type. These elements are stored in contiguous memory locations in the memory.Every single element of the value can be accessed from its index value using the brackets “[]” and the array name like a[4], a[3], etc.Declaring ArraysIn c/c++ programming languages, arrays are declared by defining the type and length (number of elements) of the array. The below syntax show declaration of an array in c/c++ −data_tpye array_name[length];For example, declaring an array of type float named the percentage of length 10.float percentage[10]Initializing array valuesIn c++ programming ... Read More

The arithmetic number is a number which has the average of all positive divisors is an integer i.e. for a number n if the number of divisors can divide the sum of divisors then n is an arithmetic number.Let’s take an example to understand the concept better, Input : n = 6 Output : YES Explanation : Divisors are 1 , 2 , 3 , 6 Sum = 1+2+3+6 = 12 Number of divisors = 4 Sum of divisors / number of divisor = 12 / 4 = 3AlgorithmStep 1 : Calculate the sum of divisors and store into sum ... Read More

The area of a triangle is given as (base * height) / 2, and the area of a parallelogram is base * height. For calculating the area of the triangle inside the parallelogram, we divide the area of the parallelogram by 2, i.e., (base * height) / 2, where the base and the height of the parallelogram are given. Here are some example scenarios to calculate the area of a triangle inside a parallelogram using the above formula: Scenario 1 Input: base = 10, height = 8 Output: 40 Explanation: Using the formula: Area ... Read More

A diagonal of a polygon is the line joining two vertices that are not adjacent to each other. The formula for calculating the area of a square with diagonal length is a2 = d2 / 2, where a and d are the side and diagonal length of the square, respectively. The visual representation of the derivation of the formula is given below: Here are some example scenarios to calculate the area of a square from the diagonal length using the above formula: Scenario 1 Input: d = 10 Output: 50 Explanation: Using the formula: area = ... Read More

n-sided regular polygon is a closed figure of n sides that has all sides and angles of equal length. The below figure shows a 6 sided regular polygon commonly known as hexagon.Apothem is a line in the polygon that connects the center of the figure to the side. And it is perpendicular to one of its sides that makes it smallest in length.Now, let drive the formula for its length.The angle made by the side of an n sided polygon is 360/n.Now, as in the figure, the angle is equal to (360 / n )/2 = 180 /nNow taking the ... Read More

In this article, we will learn an uncommon representation of array elements in both C and C++. Example of Uncommon Representation of Array Elements Consider following code in C/C++, that is trying to print an element from an array. C C++ #include int main() { int arr[2] = {0,1}; printf("First Element = %d",0[arr]); } Output The output of above program will be: First Element = 0 #include using namespace std; int main() { int arr[2] = {0,1}; cout

Time complexity can be defined as the time required by the algorithm to run its average case.Let's see and calculate the time complexity of some of the basic functions.Methodvoid counter(int n){    for(int i = 0 ; i < n ; i++){       for(int j = 1 ; j

A linked list is a data structure that stores data elements in linked form. Each node of the linked list has a data element and a link.Print reverse of a linked list is a common problem that needs to be addressed in problem solving. So, here we will learn an interesting way to print reverse of a linked list in c++ programming language.Generally print a reverse linked list needs modifications in the list or multiple traversing of the list but this method does not require any such things and also traverses the linked list only once.The logic of this method ... Read More