I had 2 Facebook phone screening interviews. I had following questions:\n\nhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock/\nhttps://leetcode.com/problems/find-largest-value-in-each-tree-row/\n\nhttps://leetcode.com/problems/add-strings/\nThe last question is somewhere on leetcode as well, but I can\'t find it. It sounded similar to: "Given an array, find all distinct subarrays where sum equals K. Each number in the given array can be reused multiple times."\nUPD: this: https://leetcode.com/problems/combination-sum/

I had 2 Facebook phone screening interviews. I had following questions:\n\nhttps://leetcode.com/problems/best-time-to-buy-and-sell-stock/\nhttps://leetcode.com/