i have a question of the detail of this program, when i testing, it always says that the documentation error. thank you.

in c ++

c++ sum the digits in an integer write a program that reads an integar between 0 and 999inclusiveand sums the digits in the integar. for example, integar is 932, the sum of all the digits is 14. we can assume that missing digits are 0(25 = 0+2+5) and also report the product and average(rounded to one decimal place)of the digits. out put should like that :

Enter an integar between 0 and 999: 295 The sum of the digits is 16.

Sum The Digits In An Integer Write a program that reads an integer between 0 and 999 (inclusive) and sums the digits in the integer For example, if the integer is 932, the sum of all the digits is 14. Assume that missing digits are zero (0). (e.g., 25 --> 0 + 2 + 5) Note: You will need to "Echo Print" the input. Your program output should look like this: Enter an integer between 0 and 999: 295 The sum of the digits is 16. Extra Credit Also report the product, and average (rounded to one decimal place) of the digits. Note: You must clearly label the extra credit output with the following makers. * Start Extra Credit ***