Mã chấm: 269215

Main.cc: In function ‘int main()’:
Main.cc:33:20: error: expected ‘;’ before ‘{’ token
     else(check==-1){
                    ^
Main.cc:21:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
Main.cc:25:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~