Question

Write a program that uses while loops to perform the following steps: Step a: Prompt the user to input two integers: firstNum and secondNum (firstNum must be less than secondNum). Step b: Output all odd numbers between firstNum and secondNum. Step c: Output the sum of all even numbers between firstNum and secondNum. Step d: Output the numbers and their squares between 1 and 10. Step e: Output the sum of the square of the odd numbers between firstNum and secondNum. Step f: Output all uppercase letters.

Answer 1

Answer:

#include<iostream>  

using namespace std;  

int main()

{

    int i, sum = 0, sqSum = 0, firstNum = 1, secondNum = 0;

    char ch;

    while (!(firstNum < secondNum))

    {

         cout << "Enter starting number: ";

         cin >> firstNum;

    cout<<"Enter ending number(must be > startingNumber): ";

         cin >> secondNum;

    }

    i = firstNum;

    cout << "The odd numbers between " << firstNum

         << " and " << secondNum << " are:\n";

    while (i <= secondNum)

    {

         if (i % 2 == 0)

             sum = sum + i;

         else

         {

             cout << i << " ";

             sqSum = sqSum + i * i;

         }

         i++;

    }

    cout << "\n\nThe sum of the even numbers is:"

         << sum << endl << endl;

    cout << "The sum of squares the odd numbers is:"

         << sqSum << endl;

    i = 1;

    cout << "\nNumber Square\n";

    while (i <= 10)

    {

         cout << " " << i << "\t " << i * i << endl;

         i++;

    }

    system("pause");

    return 0;

}