AfJalili

function findOrderedPairs(arr: number[], sum: number) {
    const result: number [][] = [];
    arr.sort((a ,b) => a - b);

    let low = 0, high = arr.length - 1;

    while (low < high) {
        if (arr[low] + arr[high] < sum) {
            low++;
        } else if (arr[low] + arr[high] > sum) {