plz help me with htis c++ program . i'm waiting for help?

Question

this is not any kind of hw help . i have a test tomorow
that's why

a program to compute the sum of digits of a given number and reverse the digits of given number. and compute the number. of digits in the given number.

if itz with logic it will be more appreciated
tanx
tutu

Answer 1

int sum = 0, count = 0, char all[100];
// I'm not completely recalling how C++ string goes

while (number != 0) {
sum += number % 10;
count++;
all += number % 10 + '0';
number = number - number % 10 / 10;
}