Question

#include<iostream>

#include<cstdlib>

using namespace std;

int main()

{

    // create array of size 20

    int arr[20];

   

    int i;

   

    cout<<"scores : ";

    for( i = 0 ; i < 20 ; i++ )

    {

        // generate a random number i range 70 - 100 an add it to arr

        arr[i] = rand() % 31 + 70;

       

        cout<<arr[i]<<" ";

    }

   

    // store the total score

    int total = 0;

   

    // store the highest score

    int highest = 0;

   

  // calculate the total score and the highest score

    for( i = 0 ; i < 20 ; i++ )

    {

        total += arr[i];

       

        // if the current score is more than the highest score

        if( arr[i] > highest )

            highest = arr[i];

    }

       

    // calculate average

    double average = (double)total / 20.0;

   

    cout<<"\n   ave : "<<average<<endl;

    cout<<" high : "<<highest;

   

    return 0;

}

Answer 1

#include<iostream>
#include<cstdlib>

using namespace std;

int main() {
    // create array of size 20
    int arr[20];

    int i;

    cout << "scores : ";
    for (i = 0; i < 20; i++) {
        // generate a random number i range 70 - 100 an add it to arr
        arr[i] = rand() % 31 + 70;

        cout << arr[i] << " ";
    }

    // store the total score
    int total = 0;

    // store the highest score
    int highest = 0;

    // calculate the total score and the highest score
    for (i = 0; i < 20; i++) {
        total += arr[i];

        // if the current score is more than the highest score
        if (arr[i] > highest)
            highest = arr[i];
    }

    // calculate average
    double average = (double) total / 20.0;

    cout << "\n   ave : " << average << endl;
    cout << " high  : " << highest;

    return 0;
}