Question

c++

• Prompts the user to enter floating point numbers that represent daily sale amounts at a store o Allows the user to indicate the end of user inputs with -1

o Validates the user input for numbers greater than 0

o Stores the numbers in an array

• Determines and displays the maximum, minimum, and arithmetic mean (average) of the sale amounts

Answer 1

#include <iostream>

using namespace std;

int main() {
    double arr[1000], sale;
    int size = 0;
    while (true) {
        cout << "Enter sales amount(-1 to exit): ";
        cin >> sale;
        if(sale == -1) break;
        if(sale < 0) {
            cout << "Error. Invalid sales amount" << endl;
        } else {
            arr[size++] = sale;
        }
    }
    // calculate maximum, minimum, and arithmetic mean
    double max = arr[0], min = arr[0], mean = 0;
    for(int i = 0; i < size; ++i) {
        if(arr[i] > max) max = arr[i];
        if(arr[i] < min) min = arr[i];
        mean += arr[i];
    }
    mean /= size;
    // display results
    cout << "Maximum sale is " << max << endl;
    cout << "Minimum sale is " << min << endl;
    cout << "Mean of sales is " << mean << endl;
    return 0;
}