7. (20 points) Write a C++ program using while loop(s) which prompts and reads a single integer n between 1 and 5 (inclusive) and then displays the Floyd's Triangle, which is a right triangle with n rows. The triangle is filled with consecutive numbers starting with 1 at the top left corner. The triangle is formatted such that numbers with a single digit will have an underscore displayed after it. Here are the triangles for each value of m n=1 n=2 n=3 n=4 -5 2 3 2 3 4 5 6 2 3 2 3 4 56 456_ 78 9 10 78 9 10 11 12 13 14 15 Write your program within the main function below using the algorithm provided (see comments). Prompt the user for an integer n with the message "Enter n: ". If the user does not enter an integer between 1 and 5 (inclusive) then prompt again with "Enter n: and read the input again until the user enters valid input. You will not receive credit if you use for loop(s). You will be graded for correct syntax, proper style and indentation, choice of variable names, and logical correctness. Do NOT write ANY comments. #include using namespace std; int main() // Declare and initialize variables // Prompt (see description above) and read from the user the number of rows. // If the input is invalid, then prompt and read again until a valid value is input. // Display Floyd's Triangle. // Format the triangle exactly as shown in the examples above with the underscore // and a single space between numbers