/in/foo.cc: In function 'int main()':
/in/foo.cc:13:2: error: expected ';' before 'else'
  else
  ^~~~
/in/foo.cc:8:4: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
  if(ww<3)
    ^
/in/foo.cc:5:6: warning: unused variable 'w' [-Wunused-variable]
  int w=1,ww,a=1,b=1,c;
      ^
/in/foo.cc:5:13: warning: unused variable 'a' [-Wunused-variable]
  int w=1,ww,a=1,b=1,c;
             ^
/in/foo.cc:5:17: warning: unused variable 'b' [-Wunused-variable]
  int w=1,ww,a=1,b=1,c;
                 ^
/in/foo.cc:5:21: warning: unused variable 'c' [-Wunused-variable]
  int w=1,ww,a=1,b=1,c;
                     ^
/in/foo.cc:29:1: error: expected '}' at end of input
 }
 ^