Question

hi,I have this C++ program,can someone add few comments with explanation what is the logic and what is what?thank you I m total beginner

#include <iostream>

using namespace std;

int ArraySum(int MyArray[], int size){
    int* p = MyArray;
    int sum = 0;
    while(p<MyArray+size){
        sum += *p;
        p++;
    }
    return sum;
}

int main()
{
    int MyArray[10] = {4, 0, 453, 1029, 44, 67, 111, 887, 4003, 1002};
    
    cout<<ArraySum(MyArray,10);

    return 0;
}

Answer 1

#include <iostream>// Including this header file defines standard input/output stream //objects.

using namespace std;// If functiones (eg:- cout) is used, but not defined in the current //scope, computer needs to know where to check. The code will be written outside of standard //name space

int ArraySum(int MyArray[], int size)// The above defined function ArraySum returns the sum //of numbers present in the array called "MyArray" and thereby integer a value....that's why //its "int Array"
{
    int* p = MyArray;//pointer variable
    int sum = 0;//the variable "sum" is initialized as zero
    while(p<MyArray+size)// Elements in "MyArray" are added one by one. After the last //element of the array is also added to the preceding elements, the while loop exits returing the //"sum"
{
        sum += *p;
        p++;
    }
    return sum;
}
 
int main()//This is the main //function (global function) of the program. function "int //main()" can be called with any numbe of arguments. 
{
    int MyArray[10] = {4, 0, 453, 1029, 44, 67, 111, 887, 4003, 1002};// integer Array of //size 10 with elements {4, 0, 453, 1029, 44, 67, 111, 887, 4003, 1002} is defined here.
    
    cout<<ArraySum(MyArray,10);//calls the function "ArraySum". Input to the function is the //defined integer array "MyArray". As mentioned before, the function "ArraySum" returns the //sum of elements in the array "ArraySum".

    return 0;//This is to explicitly return a value. the function return value is the exit //code of the program. Exit code zero is the conventional one to indicate that "the program //execution was successful" 
}