ii. Bob believes he invented a faster algorithm than Karatsuba's algorithm. Each ndigit number is partitioned...
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ii. Bob believes he invented a faster algorithm than Karatsuba's algorithm. Each ndigit number is partitioned into three (n/3)digit numbers. For example, 199054321 is di vided into three 3digit numbers 199, 054, 321. Then Bob recursively performs some multiplications of (n/3)digit numbers, in a way similar to Karatsuba's algorithm. In stead of making three (n/2)digit multiplications, he believes he needs six (n/3)digit multiplications. Write down a recurrence formula expressing the time complexity of his algorithm. Solve the recurrence. Is his algorithm faster or slower than Karatsuba's? [7 marks] (You may find the following table of common log values useful.) 3 4 6 7 8 9 5 1.58 2 2.32 2.58 2.81 3 3.17 1.26 1.46 1.63 1.77 1.89 2 1 n log₂ n log, n ii. Bob believes he invented a faster algorithm than Karatsuba's algorithm. Each ndigit number is partitioned into three (n/3)digit numbers. For example, 199054321 is di vided into three 3digit numbers 199, 054, 321. Then Bob recursively performs some multiplications of (n/3)digit numbers, in a way similar to Karatsuba's algorithm. In stead of making three (n/2)digit multiplications, he believes he needs six (n/3)digit multiplications. Write down a recurrence formula expressing the time complexity of his algorithm. Solve the recurrence. Is his algorithm faster or slower than Karatsuba's? [7 marks] (You may find the following table of common log values useful.) 3 4 6 7 8 9 5 1.58 2 2.32 2.58 2.81 3 3.17 1.26 1.46 1.63 1.77 1.89 2 1 n log₂ n log, n
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Lets denote the time complexity of Bobs algorithm as Tn where n is the number of digits in each numb... View the full answer
Related Book For
Business Analytics Communicating With Numbers
ISBN: 9781260785005
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen
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