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#include <iostream> using namespace std; int main() { int n, c=0; cin >> n; do { int digit = n % 10; n /= 10; c += digit; } while (n > 0); cout << c << endl; }
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#include <iostream> using namespace std; int main() { int n, c=0; cin >> n; do { int digit = n % 10; n /= 10; c += digit; } while (n > 0); cout << c << endl; }