fn is_leap_year (year: u32) -> bool {
    if year % 4 == 0 {
        if year % 100 == 0 {
            if year % 400 == 0 {
                return true;
            } else {
                return false;
            };
        } else {
            return true;
        };
    } else {
        return false;
    };
}
// returns if year is leap year
returns if year is leap year
returns if year is leap year
fn is_leap_year (year: u32) -> bool {
    if year % 4 == 0 {
        if year % 100 == 0 {
            if year % 400 == 0 {
                return true;
            } else {
                return false;
            };
        } else {
            return true;
        };
    } else {
        return false;
    };
}
fn is_leap_year ( year : u32 ) -> bool { if year % 4 == 0 { if year % 100 == 0 { if year % 400 == 0 { return true ; } else { return false ; } ; } else { return true ; } ; } else { return false ; } ; }
returns if year is leap year
returns if year is leap year
year
u32