algo4: binarysearch: Process query
algo4: array: merge_sorted_array: Revisited and polished
algo4: heap: merge_k_sorted_list: Revisited and polished
algo4: dp: interleaving_string: Revisited
algo4: math: Find another integer to form an all-one product
algo4: twopointers: longest_consecutive_sequence: Revisited
    -- 5 days before Turn 2nd round interview