Question

Write a program that will sum the integers between a given range (limit your range from 0 to 50). For example, if the user want to add the integers between (and including) 1 and 10, then the program should add:

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

Algorithm:

1. Program title/description
2. Ask the user to input a start value in the range 0 to 50. Remember to create the user prompts.
3. Ask the user to input a stop value in the range 0 to 50. (NOTE: the stop value should be greater than the start value) Remember to create the user prompts.
4. Use a loop to iterate through the integers in the range, adding to the sum each time the loop executes.
5. Output the start value, stop value, and the sum of the integers in between.

Test data (Use this data to test to ensure your program does the math correctly.):

• Start value: 1
• Stop value: 10
• Sum: 55

#include <iostream>
using namespace std;
int main() {
   //Declaring variable start,stop and sum
   int start, stop, sum = 0;
   //Prompt input from users Start value
   cout << "Start value: ";
   //accepting Start value
   cin >> start;
   //Prompt input from user Stop value
   cout << "Stop value: ";
   //accepting stop value
   cin >> stop;
   //looping from start to stop value
   for (int i = start; i <= stop; i++)
       //adding each value with sum
       sum += i;
   //printing out the sum
   cout << "Sum: " << sum << endl;
   return 0;
}

add error checking to it.

Check the user’s start value to see if it falls within the accepted range. If it doesn’t, the program should tell the user that their input wasn’t in the accepted range and ask the user to reenter a value within the range.

Do the same thing with the stop value.

Once both values are determined to be within the accepted range, then continue with the program.

Answer 1

#include <iostream>

using namespace std;

int main()

{

    //Declaring variable start,stop and sum

    int start, stop, sum = 0;

    //Prompt input from users Start value

    cout << "Start value: ";

    //accepting Start value

    cin >> start;

    // Check the user’s start value to see if it falls within the accepted range.

    while (start < 0 || start > 50)

    {

        // If it doesn’t, the program should tell the user that

        // their input wasn’t in the accepted range and

        cout << "Please enter a value from 0 to 50\n";

        // ask the user to reenter a value within the range.

        cout << "Start value: ";

        cin >> start;

    }

    //Prompt input from user Stop value

    cout << "Stop value: ";

    //accepting stop value

    cin >> stop;

    // Check the user’s stop value to see if it falls within the accepted range.

    while (stop < 0 || stop > 50 || start > stop)

    {

        // If it doesn’t, the program should tell the user that

        // their input wasn’t in the accepted range and

        cout << "Please enter a value from " << start << " to 50\n";

        // ask the user to reenter a value within the range.

        cout << "Stop value: ";

        cin >> stop;

    }

    // Once both values are determined to be within the accepted range

    //looping from start to stop value

    for (int i = start; i <= stop; i++)

        //adding each value with sum

        sum += i;

    //printing out the sum

    cout << "Sum: " << sum << endl;

    return 0;

}

.

Output:

.