foo.cc:7:19: error: stray '#' in program
    7 |         for(int i=#i1,i<=10;i++)cin>>a[i];
      |                   ^
foo.cc: In function 'int main()':
foo.cc:7:20: error: 'i1' was not declared in this scope; did you mean 'i'?
    7 |         for(int i=#i1,i<=10;i++)cin>>a[i];
      |                    ^~
      |                    i
foo.cc:7:32: error: expected ';' before ')' token
    7 |         for(int i=#i1,i<=10;i++)cin>>a[i];
      |                                ^
      |                                ;
foo.cc:16:15: error: 'c\U0000ff1b' was not declared in this scope
   16 |         cout<<c；
      |               ^~~
foo.cc:6:17: warning: unused variable 'A' [-Wunused-variable]
    6 |         int b,B,A;
      |                 ^

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