correcting efficiency comparison section (algorithm 2 is the fastest ✅)

After writing cpp code to measure execution time of the three algorithms using different n values, detailed in the latex table, The output reveals obviously that algorithm 2 is the fastest ⚠️⚠️, not 3. The code : https://github.com/eng-abdelrahman-sharaf/shared_repo/blob/main/cphb-page-45.cpp The Output : https://github.com/eng-abdelrahman-sharaf/shared_repo/blob/main/output_cphb_page_45.txt