/in/foo.cc: In function 'void dc11(char)':
/in/foo.cc:25:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
         if(flag)
           ^
/in/foo.cc: In function 'void dc21(char)':
/in/foo.cc:42:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
         if(flag)
           ^