Sum of Numbers Write a program that asks the user for a positive integer value and that uses a loop to validate the input. The program should then use a second loop to compute the sum of all the...

Sum of Numbers

Write a program that asks the user for a positive integer value and that uses a loop to

validate the input. The program should then use a second loop to compute the sum of all

the integers from 1 up to the number entered. For example, if the user enters 50, the loop

will find the sum of 1, 2, 3, 4, … 50.