Mã chấm: 269746

Main.cc: In function ‘bool ktDang(long int)’:
Main.cc:29:5: error: ‘t’ was not declared in this scope
     t = abs(n);
     ^
Main.cc:30:32: error: expected ‘;’ before ‘i’
     for (int i = 1; Mu(i) <= t i++)
                                ^