Question

Statistics are often calculated with varying amounts of input data. Write a program that takes any number of non-negative integers as input, and outputs the average and max. A negative integer ends the input and is not included in the statistics.

Answer 1

• Since language is not mentioned so I have used for the program.
• So basically here we are taking the inputs till we get any negative value. When we get any negative value, we compute the average, find max and terminate the program.
• In the comment section of the program, I have explained the detailed logic.
• Please read it carefully from starting and try to run this program on your system.

Please refer to the comments of the program for more clarity.

#include<bits/stdc++.h>
using namespace std;

int main()  // Starting of the main method
{
    int arr[100000];  // Declaring an array to store the incoming non-negative values
    //Here I have taken the maximum size of the array for safety

    // Here length represent the current length/size of the array
    int input, length = 0; // Initializing the length of the array as 0


    // Initialized an infinite loop. It will run till it gets a negative value
    while(1)
    {
        cin >> input;  // Taking number as input
        if(input<0)
        {
            // When number is negative, calculating the average, sum and breaking/terminating the program
            double average;
            int sum=0;

            // Initialized the max value with the first element of the array
            int max_value = arr[0];

            // Traversing the array
            for(int i=0; i<length; i++)
            {
                sum = sum + arr[i];

                // Finding the maximum value from the array
                if(arr[i] > max_value)
                {
                    max_value = arr[i];
                }
            }

            // Finding the average
            average = (double)sum / length;

            // Printing the average and the max
            cout << "\nAverage: " << average << endl;
            cout << "Max: " << max_value << endl;
            break;
        }
        else
        {
            // When number is non negative, storing the input to the array and increasing the size
            arr[length] = input;
            length++;
        }
    }
    return 0;
}

Sample Input-Output/Code-run:

Please let me know in the comments in case of any confusion. Also, please upvote if you like.