/in/foo.cc: In function 'int main()':
/in/foo.cc:21:17: error: 'struct node' has no member named 'a'
   21 |         if(a[i].a=="Y")a[i].sum+=1000;
      |                 ^
/in/foo.cc:22:18: warning: comparison with string literal results in unspecified behavior [-Waddress]
   22 |         if(a[i].b=="Y"&&a[i].m>80)a[i].sum+=850;
      |            ~~~~~~^~~~~
/in/foo.cc:22:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
/in/foo.cc:26:24: error: expected initializer before '+=' token
   26 |                 int num+=a[i].sum;
      |                        ^~
/in/foo.cc:30:15: error: 'num' was not declared in this scope; did you mean 'enum'?
   30 |         cout<<num;
      |               ^~~
      |               enum
/in/foo.cc: In function 'bool cmp1(node, node)':
/in/foo.cc:12:1: warning: control reaches end of non-void function [-Wreturn-type]
   12 | }
      | ^