If in Typescript:

Add this to main:

const qtyItens = readLine()
const element: number[] = readLine().split(' ').map((e) => parseInt(e))

const d = new Difference(element)
d.computeDifference()
const maxDiff = d.maximumDifference
console.log(maxDiff)

python 3

`# Add your code here class Difference: def init(self, a): self.__elements = a

def computeDifference(self):
    self.__elements.sort()
    self.maximumDifference = self.__elements[-1] - self.__elements[0]

End of Difference`

Easy Peasy Python!

def computeDifference(self):
        self.__elements.sort()
        self.maximumDifference = self.__elements[-1] - self.__elements[0]

python code

class Difference: def init(self, a): self.__elements = a

# Add your code here
def computeDifference(self):
    dif = 0
    for i in self.__elements:
        for j in self.__elements:
            new_dif = i -j
            if new_dif>dif:
                dif=new_dif
    self.maximumDifference=dif

End of Difference class

_ = input() a = [int(e) for e in input().split(' ')] d = Difference(a) d.computeDifference()

print(d.maximumDifference)

d = Difference(a) d.computeDifference()

print(d.maximumDifference)

PHP

function __construct($arr){
       $this->elements= $arr;
       $this->maximumDifference=0;
   }
   
   function ComputeDifference(){
       foreach($this->elements as $i=>$v){
           if($i+1<count($this->elements)){
                $shift = array_slice($this->elements,$i+1);  
                foreach($shift as $p){
                    $this->maximumDifference = $this->maximumDifference < abs($v - $p)?abs($v - $p): $this->maximumDifference; 
                }
           }
       } 
   }