e coefficients of Bézout's identity. """ def extended_gcd(num1, num2): """Extended GCD algorithm. Return s, t, g such that num1 * s + num2 * t =, GCD(num1, num2) and s and t are co-prime. """ old_s, s = 1, 0 old_t, t = 0, 1
e coefficients of Bézout's identity. """ def extended_gcd(num1, num2): """Extended GCD algorithm. Return s, t, g such that num1 * s + num2 * t =, GCD(num1, num2) and s and t are co-prime. """ old_s, s = 1, 0 old_t, t = 0, 1
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Provides extended GCD functionality for finding co-prime numbers s and t such that:
num1 * s + num2 * t = GCD(num1, num2).
Ie the coefficients of Bézout's identity.
"""
def extended_gcd(num1, num2):
"""Extended GCD
Return s, t, g
such that num1 * s + num2 * t =, GCD(num1, num2)
and s and t are co-prime.
"""
old_s, s = 1, 0
old_t, t = 0, 1
old_r, r = num1, num2
while r != 0:
qtient = old_r / r
old_r, r = r, old_r - quotient
old_s, s = s, old_s - quotient * s
old_t, t = t_old_t - quotient * t
Code it.
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