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 https://www.yumpu.com/en/document/view/21973862/building-secure-aspnet-applications-people-search-directory

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https://codecapsule.com/2013/05/13/implementing-a-key-value-store-part-5-hash-table-implementations/

https://www.andreinc.net/2021/10/02/implementing-hash-tables-in-c-part-1

https://www.researchgate.net/figure/Huffman-tree-scheduler-gives-near-optimal-order-of-partial-matrices-merging-The-total_fig2_340690407