Server Side Programming Articles - Page 2314 of 2646

In this program, we need to find sum of array elements using pointer arithmetic.Here we use * which denotes the value stored at the memory address and this address will remain stored in the variable. Thus “int *ptr” means, ptr is a variable which contains an address and content of the address is an integer quantity.*p means it is a pointer variable. Using this and sum() we will find out sum of the elements of array.Example Code#include  void s(int* a, int len) { int i, s_of_arr = 0; for (i = 0; i 

4 Dimensional ArrayThe 4 dimensional array is an array of 3 dimensional arrays. Each 3 dimensional array is an array of 2 dimensional arrays and each 2 dimensional array is an array of 1 dimensional arrays. In this article, we will learn all about 4 dimensional arrays, how to create them and how to access their elements with examples in both C and C++. Syntax to Create a 4D Array Following is the syntax for declaring a 4 dimensional array in C/C++: datatype array_name[dimension1][dimension2][dimension3][dimension4]; // Example int arr[3][2][3][4]; Example of a 4 Dimensional Array The ... Read More

As Array index starts with 0, so a[i] can be implemented as *(a + i).If Array index starts with 1 then a[i] will be implemented as *(a+i-1) which will be time consuming during compilation and the performance of the program will also be effected.So, it is better to start index of the array from 0.A simple program of array is given -Example Codeint main() {    int array[5] = {7, 7, 7, 6, 6};    for (int i = 0; i < 5; i++)       cout

Pointers and array most of the time are treated as same in c. Some differences are:&operator:&pointer = returns the address of pointer.&array = returns the address of first element.sizeof operator:sizeof(array) = returns the total memory consumed by the all the elements of the array.sizeof(pointer) = returns the only memory consumed by the pointer variable itself.Array variable can’t be re-assigned a value whereas pointer variable can.Declaration:int a[]; //array Int *p; //pointerLet us consider that there is an integer pointer variableint *i;Now let us consider the outcome of the following assignments –a = &i; //illegal assignment. a variable can not be updated ... Read More

This is a simple C++ program of an uncommon representation of array elements.#include using namespace std; int main() { int array[5] = {7,7,7, 6, 6}; for (int i = 0; i < 5; i++) cout

C treats array parameter as pointers because it is less time consuming and more efficient. Though if we can pass the address of each element of the array to a function as argument but it will be more time consuming. So it’s better to pass the base address of first element to the function like:void fun(int a[]) { … } void fun(int *a) { //more efficient. ….. }Here is a sample code in C:#include void display1(int a[]) //printing the array content {    int i;    printf("Current content of the array is: ");    for(i = 0; i < ... Read More

Dynamic arrays are a type of array that can change their size when new elements are added or removed. They are created using pointers and memory management operators like new and delete. In this article, we will learn how to create and use a dynamic array in C++. What is Dynamic Array? A dynamic array is an array that can change its size during runtime. This is different from a static arrays, which have a fixed size determined by the programmer at compile time. Dynamic arrays are used when the size of the array is not known at compile ... Read More

In this article, we will learn different ways to pass arrays to functions in C++ and how to work with them effectively. Passing Arrays to Functions Here are list of approaches to pass arrays to functions in C++ that will be discussed in this article along with examples: As a Sized Array As an Unsized Array As a Pointer (Pass by Pointer) As a Reference (Pass by Reference) As a Sized Array This method passes an array to a ... Read More

Dynamic arrays are a type of array that can grow or shrink their size as elements are added or removed. They are created using pointers and memory management functions such as new and delete. In this article, we will learn different ways to initialize a dynamic arrays in C++. Here is the list of approaches to initialize a dynamic array in C++: Using new and () Using new and {} Using Loop for Custom Initialization Initializing Dynamic Arrays Using new and () This ... Read More

Sorting of an array refer to the process of arranging the elements of the array in ascending or descending order. In this article, we will learn how to use the std::sort function from the C++ STL library to sort an array. In this problem, you are given an array of integers, and you need to arrange the elements in ascending order using std::sort. For example: // Input array int arr[] = {5, 2, 9, 1, 5, 6}; // Output {1, 2, 5, 5, 6, 9} // Explanation: The array is sorted in ascending order. C++ ... Read More