make amain programandafunctionthat finds and returns the smallest value of n for which: 1 + 2 + 3 + ... + n is greater than or equal to max (where max is a number input from the user).You can use the following prototype:

int SmallestValue(int);

In the main program be sure to declare all variables and show the call. Be user friendly!

Sample run:

What is the max number:23

The smallest value of n where the sum of 1 to n is greater or equal to 23 is:7

Again? Y

What is the max number:12

The smallest value of n where the sum of 1 to n is greater or equal to 12 is: 5

Again? N