/in/foo.cc: In function 'int main()':
/in/foo.cc:27:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if (ei>=ai&&ei>=ci||gi<=ai&&gi<=ci||bi>=hi&&bi>=fi||fi>=di&&fi>=bi)
       ~~~~~~^~~~~~~~
/in/foo.cc:27:45: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if (ei>=ai&&ei>=ci||gi<=ai&&gi<=ci||bi>=hi&&bi>=fi||fi>=di&&fi>=bi)
                                       ~~~~~~^~~~~~~~
/in/foo.cc:27:61: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if (ei>=ai&&ei>=ci||gi<=ai&&gi<=ci||bi>=hi&&bi>=fi||fi>=di&&fi>=bi)
                                                       ~~~~~~^~~~~~~~