Answer:
// here is program in C++.
#include <iostream>
using namespace std;
// function to calculate sum of elements of array
int sumArray(int ar[],int n)
{
// variable
int sum=0;
for(int a=0;a<n;a++)
{
// calculate sum of all elements
sum=sum+ar[a];
}
// return sum
return sum;
}
// driver function
int main()
{
// variable
int n;
cout<<"enter the number of elements in array:";
// read the number of elements
cin>>n;
// Declare an array of size n
int ar[n];
cout<<"enter "<<n<<" elements:";
// read the elements of array
for(int x=0;x<n;x++)
{
cin>>ar[x];
}
// call the function with parameter array and n
// print the sum
cout<<"sum of "<<n<<" elements of array is: "<<sumArray(ar,n)<<endl;
return 0;
}
Explanation:
Read the number of elements and assign it to "n".Then create an array of size n of integer type.Read n elements of the array.Call the function sumArray() with parameter array and n.Here it will calculate the sum of all elements and return an integer which holds the sum of all elements.
Output:
enter the number of elements in array:5
enter 5 elements:3 6 12 9 5
sum of 5 elements of array is: 35
