Function getSums

backtracking/target-sum.js:14–18

(nums, target)

// Time O(n) - because we are using recursion, at most we will have n calls in the call-stack
//
const getSums = (nums, target) => {
  const result = [];
  backtrack(0, 0, [], nums, result, target);
  return result;
};

function backtrack(idx, currSum, currSumArray, nums, result, target) {
  if (idx > nums.length || currSum > target) {