Minimum Absolute Difference in an Array in Algorithm | HackerRank Programming Solutions | HackerRank Problem Solving Solutions in Java [💯Correct]

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Introduction To Algorithm

The word Algorithm means “a process or set of rules to be followed in calculations or other problem-solving operations”. Therefore Algorithm refers to a set of rules/instructions that step-by-step define how a work is to be executed upon in order to get the expected results. 

Advantages of Algorithms:

• It is easy to understand.
• Algorithm is a step-wise representation of a solution to a given problem.
• In Algorithm the problem is broken down into smaller pieces or steps hence, it is easier for the programmer to convert it into an actual program.

Link for the Problem – Minimum Absolute Difference in an Array – Hacker Rank Solution

Minimum Absolute Difference in an Array – Hacker Rank Solution

Problem:

Function Description

Complete the minimumAbsoluteDifference function in the editor below. It should return an integer that represents the minimum absolute difference between any pair of elements.

minimumAbsoluteDifference has the following parameter(s):

• int arr[n]: an array of integers

Returns

• int: the minimum absolute difference found

Input Format

Sample Input 0

3
3 -7 0

Sample Output 0

3

Explanation 0

Sample Input 1

10
-59 -36 -13 1 -53 -92 -2 -96 -54 75

Sample Output 1

1

Explanation 1

Minimum Absolute Difference in an Array – Hacker Rank Solution

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] a = new int[n];
        for(int a_i=0; a_i < n; a_i++){
            a[a_i] = in.nextInt();
        }
        Arrays.sort(a);
        int min = 2000000000;
        for (int i = 1; i < n; i++) {
            min = Math.min(Math.abs(a[i]-a[i-1]), min);
        }
        System.out.println(min);
    }
}