09-29 [LeetCode][658. Find K Closest Elements] 4 Approaches: Two Pointers, Sorting, Priority Queue and Binary Search
08-02 [Leetcode][378. Kth Smallest Element in a Sorted Matrix] 3 Approaches: Sorting, Merge Sort, Binary Search
06-29 [Leetcode][406. Queue Reconstruction by Height] Pattern of Data Pairs Problem: Sorting First then Greedy
06-22 [LeetCode][215. Kth Largest Element in an Array] 3 Approaches: Sorting, Priority Queue and Divide and Conquer