C++ program to increment all array elements by n and print the resultant array

Here are C++ programs to increment all array elements by n and print the resultant array. In first program to increment all array elements by n we have used for-loop, and in second program we have used operator overloading. 

C++ programs to increment all array elements by n and print the resultant array

#include<iostream>
using namespace std;
int main()
{
    int a[20],num,n;
    cout<<"How many elements to be stored (max 20) : ";
    cin>>num;
    cout<<"Enter elements of array : ";
    for(int i=0;i<num;i++)
        cin>>a[i];
    cout<<"Enter value of n : ";
    cin>>n;
    cout<<"After incrementing all element in array by "<<n<<" : ";
    for(int i=0;i<num;i++)
    {
        a[i]=a[i]+n;
        cout<<a[i]<<" ";
    }
    return 0;
}

C++ programs to increment all array elements by n using operator overloading

#include<iostream>
using namespace std;
int num;
struct add
{
    int ar[20];
};
add operator+(add &a1,int n)
{
    add a2;
    for(int i=0;i<num;i++)
        a2.ar[i]=a1.ar[i]+n;
    return a2;
}
int main()
{
    add a1,a2;
    int n;
    cout<<"How many elements to be stored (max 20) : ";
    cin>>num;
    cout<<"Enter elements of array : ";
    for(int i=0;i<num;i++)
        cin>>a1.ar[i];
    cout<<"Enter value of n : ";
    cin>>n;
    a2=a1+n;
    cout<<"After incrementing all element in array by "<<n<<" : ";
    for(int i=0;i<num;i++)
        cout<<a2.ar[i]<<" ";
    return 0;
}