In c++ programming language, an associative array is a special type of array in which the index value can be of any data type i.e. it can be char, float, string, etc. These associative arrays are also known as maps or dictionaries. Also, the indexes are given a different name which is key and the data that is stored at the position of the key is value.So, we can define the associative array as a key-value pair.Let's define an associative array of bikes and their top speed.Bike top speed Ninja 290 S1000rr 310 Bullet 127 Duke 135 R1 286Example Live Demo#include ... Read More

The integer is a data type used to define a number that contains all positive, negative or zero non-fractional values. These cannot have decimals.Float is a data type used to define a number that has a fractional value. These can have decimals also.Now, we will check what will be the value of float and integer return by the compiler when we input the same value for both.Example Live Demo#include using namespace std; int main(){    float f = 23;    unsigned int x = 23;    cout

The array is a data structure in c++ that stored multiple data elements of the same data type in continuous memory locations.In c++ programming language, there are inbuilt functions to manipulate array types. Some functions can also be applied to multidimensional arrays. The array header file contains functions to manipulate arrays in c++ programming language.Some common methods to manipulate arrays in c++ are −is_array()This function is used to check if the variable passed to the function is of the type array or not. This method is strict in recognizing arrays that even std:: array is rejected in the check. The ... Read More

The array sum refers to the sum of all elements in an array. The STL library of C++ provides built-in functions to easily calculate the sum of elements in an array. In this article, we will explain all those STL functions with examples. Consider the following input/output scenario to understand the concept of array sum: Input: int arr[] = {1, 2, 3, 4, 5}; Output: 15 Explanation: The sum of the elements in the array is 1 + 2 + 3 + 4 + 5 = 15. Following are the different STL functions ... Read More

A queue is a linear data structure in which the order of operation is FIFO (first in first out).The array is a data structure that contains elements of the same data type, stored in continuous memory location.In queue the insertion and deletion operations as done at opposite ends of the queue. The implementation is a bit more complex as compared to the stack.In array implementation of queue, we create an array queue of size n with two variables top and end.Now, initially, the array is empty i.e. both top and end are at 0 indexes of the array. And as ... Read More

The array is a collection of elements of the same data type stored in continuous memory locations.C++ standard library contains many libraries that support the functioning of arrays. One of them is an array data() method.The array data() in c++ returns a pointer pointing to the first element of the object.Syntaxarray_name.data();ParameterThere are no parameters accepted by the function.Return typeA pointer to the first element of the array.ExampleProgram To Illustrate The Use Of Array Data() Method − Live Demo#include using namespace std; int main(){    array percentage = { 45.2, 89.6, 99.1, 76.1 };    cout

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