/in/foo.c: In function 'main':
/in/foo.c:11:5: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
   if(x==y)
     ^
/in/foo.c:16:5: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
   if(x-2==y)
     ^