/in/foo.cc: In function 'int main()':
/in/foo.cc:14:24: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   14 |                 if(y1>0&&y2>0||y1<0&&y2<0)
      |                    ~~~~^~~~~~
/in/foo.cc: At global scope:
/in/foo.cc:29:1: error: expected declaration before '}' token
   29 | }
      | ^