foo.cc:2:1: error: 'procedure' does not name a type
    2 | procedure bubble_sort(n:longint);
      | ^~~~~~~~~
foo.cc:3:1: error: 'var' does not name a type
    3 | var
      | ^~~
foo.cc:5:1: error: 'begin' does not name a type
    5 | begin
      | ^~~~~
foo.cc:11:1: error: 'a' does not name a type
   11 | a[j]:=a[j+1];
      | ^
foo.cc:12:1: error: 'a' does not name a type
   12 | a[j+1]:=x;
      | ^
foo.cc:13:1: error: 'end' does not name a type
   13 | end;
      | ^~~
foo.cc:14:1: error: 'end' does not name a type
   14 | end;
      | ^~~

正在同步测试数据，请稍后
[Hydro](https://hydro.ac)提供评测服务