/in/foo.cc: In function 'int main()':
/in/foo.cc:6:7: error: invalid operands of types 'double' and 'int' to binary 'operator%'
  if((l%4==0 and l%100!=0) or (l%400==0)) cout<<"Y";
      ~^~
/in/foo.cc:6:18: error: invalid operands of types 'double' and 'int' to binary 'operator%'
  if((l%4==0 and l%100!=0) or (l%400==0)) cout<<"Y";
                 ~^~~~
/in/foo.cc:6:32: error: invalid operands of types 'double' and 'int' to binary 'operator%'
  if((l%4==0 and l%100!=0) or (l%400==0)) cout<<"Y";
                               ~^~~~