C Language: IF

¦~¥÷yy¡G ¤ë¥÷mm¡G
if (
(mm==2)
 &&
(yy%4==0)
 )
max2=29;
else max2=28;
max2 =
? 29
: 28 ;
max2 = + 28;

max.no.of days for =