Mã chấm: 13639

Main.cc: In function ‘int main()’:
Main.cc:15:19: error: expected ‘)’ before ‘mod’
             if (j mod 4==0) dem++;
                   ^~~
Main.cc:17:22: error: expected ‘)’ before ‘mod’
                 if(j mod 7==0) dem++;
                      ^~~
Main.cc:19:26: error: expected ‘)’ before ‘mod’
                     if(j mod 11==0) dem++;
                          ^~~