/in/foo.cc:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
/in/foo.cc: In function 'bool check3()':
/in/foo.cc:35:14: error: 'i0' was not declared in this scope
 for (int i=1;i0;j--) if (!a[j][i]) {if (m-j!=yy[i][ly[i]]) return false;break;}
              ^~
/in/foo.cc:35:17: error: 'j' was not declared in this scope
 for (int i=1;i0;j--) if (!a[j][i]) {if (m-j!=yy[i][ly[i]]) return false;break;}
                 ^
/in/foo.cc: At global scope:
/in/foo.cc:39:1: error: expected unqualified-id before 'for'
 for (int i=1;i
 ^~~
/in/foo.cc:39:14: error: 'i' does not name a type
 for (int i=1;i
              ^
/in/foo.cc: In function 'bool check(int, int)':
/in/foo.cc:19:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'bool check2(int, int)':
/in/foo.cc:29:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^