Question

Goal: To bring together everything you've learned about repetition, relational operators, and input validation and show your mastery of these concepts.

You are to write a program that will allow a user to enter as many numbers as they want (one number at a time and all numbers must be greater than zero). You must have a way for the user to stop entering values. Once the user stops, you will immediately display the following:

• The lowest number was:
• The highest number was:
• The number of values entered was:
• The average of the numbers was:

An IPO or Flowchart for the problem.

A test case sheet that shows 3 sets of input data, and the expected results of running the
program for each set of input data.

C Code

Answer 1

Program code:

#include<stdio.h>
int main()
{
    int array[1000],min=1000,max=0,count=0,i,val,ch;
    float sum=0,average;
    while(1)
    {
        printf("Enter a number:");
        scanf("%d",&val);
        if(val>0)
        {
           array[count]=val;
           count++;
        }
        else
            printf("Negative values are not allowed...\n");
        printf("Do you want to continue(1/0):");
        scanf("%d",&ch);
        if(ch==0)
            break;
    }
    for(i=0;i<count;i++)
    {
        if(max<array[i])
            max=array[i];
        if(min>array[i])
            min=array[i];
        sum=sum+array[i];
    }
    average=sum/count;
    printf("\nThe lowest number was:%d",min);
    printf("\nThe highest number was:%d",max);
    printf("\nThe number of values entered was:%d",count);
    printf("\nThe average of numbers was:%f",average);
}

Output:

Testcase-1:

Testcase-2:

Testcase-3: