iOS repl.it - IF Else Challenge Solution

control_flow.swift

//Don't change this
var aYear =  Int(readLine()!)!

func isLeap(year: Int) {
    
    var leap = "NO"
    
    //IF divisible by 4 with no remainders.
    if year % 4 == 0 {
        leap = "YES"
        //Is leap year, unless:
    }
    if year % 100 == 0 {
        leap = "NO"
        //Is not leap year, unless:
    }
    if year % 400 == 0 {
        leap = "YES"
        //Is leap year.
    }
    
  
    
    print(leap)
    
    
}

//Don't change this
isLeap(year: aYear)

func isLeap(year: Int) {
    if year % 4 == 0 && (year % 100 != 0 || year % 400 == 0) {
        print("YES")
    }
    else{
        print("NO")
    }
}