123
#include <iostream> #include <string> using namespace std; int main() { int a,b=0; int i = 0; cin >> a; while (a > 0) { i++; b = b + (a % 10); a /= 10; } cout << b << " "; }
#include <iostream> #include <string> using namespace std; int main() { int a,b=0; int i = 0; cin >> a; while (a > 0) { i++; b = b + (a % 10); a /= 10; } cout << b << " "; }