Leetcode•Mar 18, 2026

Minimum Absolute Difference

Hazrat Ali

Leetcode

Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements.

Return a list of pairs in ascending order(with respect to pairs), each pair [a, b] follows

  • a, b are from arr
  • a < b
  • b - a equals to the minimum absolute difference of any two elements in arr

 

Example 1:

Input: arr = [4,2,1,3]
Output: [[1,2],[2,3],[3,4]]
Explanation: The minimum absolute difference is 1. List all pairs with difference equal to 1 in ascending order.

Example 2:

Input: arr = [1,3,6,10,15]
Output: [[1,3]]

Example 3:

Input: arr = [3,8,-10,23,19,-4,-14,27]
Output: [[-14,-10],[19,23],[23,27]]

Solution
var minimumAbsDifference = function(arr) {
    arr.sort((a, b) => a - b);

    let minDiff = Infinity;
    let result = [];

    for (let i = 1; i < arr.length; i++) {
        let diff = arr[i] - arr[i - 1];

        if (diff < minDiff) {
            minDiff = diff;
            result = [[arr[i - 1], arr[i]]];
        } else if (diff === minDiff) {
            result.push([arr[i - 1], arr[i]]);
        }
    }

    return result;
};



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