digit sum c 2b 2b

1int x, s = 0;
2   cout << "Enter the number : ";
3   cin >> x;
4   while (x != 0) {
5      s = s + x % 10;
6      x = x / 10;
7   }

1// sum the digits of an integer
2int getSum(long long n) {
3  int sum = 0;
4  int m = n;
5  while(n > 0) {    
6    m = n % 10;    
7    sum = sum + m;    
8    n = n / 10;    
9  } 
10  return sum;
11}

1//1
2	int n = 12345, sum = 0;
3    while(n) {
4        sum+=n%10;
5        n/=10;
6    }
7    cout << sum; //15
8//2
9	int n = 12345, sum = 0;
10    for (sum = 0; n > 0; sum += n % 10, n /= 10);
11    cout << sum; //15