CODE EXAMPLE FOR CPP

Tech mahindra coding questions

#include<iostream>
using namespace std;
int calculateTotalInterest(int n, int arr[])
{
    int tax=0;
    for(int i=0;i<n;i++)
    {
        tax=tax+(int)((arr[i]-1000)*0.2);
    }
    return tax;
}
int main()
{
    int n;
    cin>>n;
    int arr[n];
    for(int i=0;i<n;i++)cin>>arr[i];
    cout<<calculateTotalInterest(n,arr);
    return 0;
}