g-akshay

// a simple pure function to get a value adding 10
const add = (n) => (n + 10);
console.log('Simple call', add(3));
// a simple memoize function that takes in a function
// and returns a memoized function
const memoize = (fn) => {
  let cache = {};
  return (...args) => {
    let n = args[0];  // just taking one argument here
    if (n in cache) {

g-akshay

// Time complexity: O(n^2)
function findTriplets(arr, n) {
    arr.sort();
    var l = arr.length;
    for (var i = 0; i < l; i++) {
        var j = i + 1,
            k = l - 1;
        while (j < k) {
            if (arr[i] + arr[j] + arr[k] < n) {
                j++;