Compile and Execute Swift Online

import Foundation
import Glibc
 
var error501 = (501, "Not implemented")
var s1:String = "n1"
var s2 = "n2"
let c1:Character = "a"
var arrI = [5,6,3,10,8]
var nul:Bool? = nil
print("The code is \(error501.0)")
print("The definition of error is = \(error501.1)")

print(s1, s2, separator: " - ", terminator: " end ")
s1.append(c1)
print(s1)

print()
print(arrI)
var i = 0
for _ in arrI {
    print(arrI[i])
    i+=1
}
print(nul as Any)
print()

let evens: Set = [10,12,14,16,18]
let odds: Set = [5,7,9,11,13]
let primes = [2,3,5,7]
print(odds.union(evens).sorted())
print(odds.intersection(evens).sorted())
print(odds.subtracting(primes).sorted())
print()
func display(no1: Int) -> Int {
   let a = no1
   return a
}

print(display(no1: 100))
print(display(no1: 200))

func sum(a: Int, b: Int) -> Int {
   return a + b
}
var addition: (Int, Int) -> Int = sum
print(addition(40, 89))

let divide = {
   (val1: Int, val2: Int) -> Int in 
   return val1 / val2 
}
print(divide(200, 20))

var count:[Int] = [5, 10, -6, 75, 20]
let descending = count.sorted(by: { n1, n2 in n1 > n2 })
let ascending = count.sorted(by: { n1, n2 in n1 < n2 })

print()
print(descending)
print(ascending)

print()
let sub = {
   (no1: Int, no2: Int) -> Int in
   return no1 - no2 
}
let digits = sub(10, 20)
print(digits)