[D1.3] Queues: Leetcode Question

[kavuong]

Leetcode Question

• add cards that conceptually explain the solution to this problem:

  • https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/

• Solution: https://ttzztt.gitbooks.io/lc/content/combination/shortest-subarray-with-sum-at-least-k.html

• make sure READMEs are updated