ios - How can i get top 2 max values from an array of float numbers in swift? -

i need 2 max value array of float number i.e. 1 highest , 1 second highest.is there simple way of getting along indexes or need change array structure this?

just sort array , take required value

var array1 = [2.1, 2.2, 2.5, 3.0, 4.2, 2]  var array2 = array1.sort(){ $0 > $1}  //one way  let firstmax = array2[0] let secondmax = array2[1]  //second way let firstmax = array2.removefirst() let secondmax = array2.removefirst() 

edit

if want indexes them like

let maxpos = array1.indexof(firstmax) let secmaxpos = array1.indexof(secondmax) 

if confused these things follow normal basics follows.

var max = -1.0, maxpos = -1, secmax = -1.0, secmaxpos = -1 (index, value) in array1.enumerate() {     if value > max {         max = value         maxpos = index     } else if value > secmax {         secmax = value         secmaxpos = index     } } print("max:\(max)->pos:\(maxpos)::secmax:\(secmax)->secmaxpos:\(secmaxpos)")