Span Of Array

1. You are given a number n, representing the count of elements.
2. You are given n numbers.
3. You are required to find the span of input. Span is defined as difference of maximum value and minimum value.

Input Format

A number n
n1
n2
.. n number of elements

Output Format

A number representing max - min

Constraints
1 <= n <= 10^4
0 <= n1, n2
 .. n elements <= 10 ^9
Sample Input
6
15
30
40
4
11
9
Sample Output
36

import java.io.*;
import java.util.*;

public class Main{

public static void main(String[] args) throws Exception {
    // write your code here
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] arr = new int[n];
    for(int i=0;i<n;i++)
        arr[i] = sc.nextInt();
    int min = Integer.MAX_VALUE, max = Integer.MIN_VALUE;
    for(int i=0;i<n;i++){
        if(arr[i]<min)
            min = arr[i];
        else if(arr[i] > max)
            max = arr[i];
    }
    System.out.println(max-min);
 }

}