Mã chấm: 271291

Main.cc:7:3: error: expected initializer before ‘do’
   do{
   ^~
Main.cc:9:4: error: expected unqualified-id before ‘while’
   }while(n<1 || n>100);
    ^~~~~
Main.cc: In function ‘void chuoidapan(char*)’:
Main.cc:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i