2839 설탕 배달 #include using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n, th_sugar = 3,fi_sugar = 5,check = -1; cin >> n; int i = n / fi_sugar; while (i>=0) { if (0 == ((n - (i * fi_sugar)) % th_sugar)) { cout
