how we can do programming of leap year

Answer 1

You could do something like this:

if (year % 4 == 0)
{
//leap year
}
else
{
//not a leap year
}

Answer 2

if(year%4==0){
if((year%100==0)&&(year%400!=0)){
cout<<"not a leap year";
}else{
cout<<"its a leap year";
}
}else{
cout<<"not a leap year";
}

Answer 3

Thanks

Answer 4

if(year % 4 == 0)
cout<<"it is a leap year";
else
cout<<"not a leap year";