The Quantum Access Authentication System of a futuristic space station uses complex algorithms to validate access codes. Each access code is a sequence of digits, and the validation process involves intricate mathematical operations. The validation mechanism is described as follows: Take the sum of the digits at odd positions from left to right. Take the product of the digits at even positions from left to right. If the absolute difference between the results from step 1 and step 2 is a prime number, the access code is considered valid; otherwise, it is invalid. Example 1: Consider the access code 13579246. Step 1. Take the sum of the digits at odd positions from left to right. 1+5+9+2=17 Step 2. Take the product of the digits at even positions from left to right. 3*7*2*6=252 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 117-2521=235 (prime) Access code 13579246 is valid. Example 2: Now, let's examine the access code 86420137. Step 1. Take the sum of the digits at odd positions from left to right. 8+4+0+3=15 Step 2. Take the product of the digits at even positions from left to right. 6*2*1*7=84 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 115-841 = 69 (not prime) Access code 86420137 is invalid. Example 3: Finally, let's check the access code 24681357. Step 1. Take the sum of the digits at odd positions from left to right. 2+6+1+5=14 Step 2. Take the product of the digits at even positions from left to right. 4*8*3*7=672 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 114-6721= 658 (not prime) Access code 24681357 is invalid. Your task is to write a program that reads access codes from user input and classifies them as "valid" or "invalid." The program should have two arrays for valid and invalid access codes, initially empty. The array sizes should be set to 20, assuming the user will enter at most 20 access codes. The program should start asking for an integer from the user, representing the access code. If the access code is valid according to the validation steps, it should be added to the "valid codes" array. If the code is invalid, it should be added to the "invalid codes" array. If the user enters the code 0, the program should display the valid and invalid codes arrays and stop. Error handling for non-integer inputs is not required.
The Quantum Access Authentication System of a futuristic space station uses complex algorithms to validate access codes. Each access code is a sequence of digits, and the validation process involves intricate mathematical operations. The validation mechanism is described as follows: Take the sum of the digits at odd positions from left to right. Take the product of the digits at even positions from left to right. If the absolute difference between the results from step 1 and step 2 is a prime number, the access code is considered valid; otherwise, it is invalid. Example 1: Consider the access code 13579246. Step 1. Take the sum of the digits at odd positions from left to right. 1+5+9+2=17 Step 2. Take the product of the digits at even positions from left to right. 3*7*2*6=252 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 117-2521=235 (prime) Access code 13579246 is valid. Example 2: Now, let's examine the access code 86420137. Step 1. Take the sum of the digits at odd positions from left to right. 8+4+0+3=15 Step 2. Take the product of the digits at even positions from left to right. 6*2*1*7=84 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 115-841 = 69 (not prime) Access code 86420137 is invalid. Example 3: Finally, let's check the access code 24681357. Step 1. Take the sum of the digits at odd positions from left to right. 2+6+1+5=14 Step 2. Take the product of the digits at even positions from left to right. 4*8*3*7=672 Step 3. If the absolute difference between the results from step 1 and step 2 is a prime number. 114-6721= 658 (not prime) Access code 24681357 is invalid. Your task is to write a program that reads access codes from user input and classifies them as "valid" or "invalid." The program should have two arrays for valid and invalid access codes, initially empty. The array sizes should be set to 20, assuming the user will enter at most 20 access codes. The program should start asking for an integer from the user, representing the access code. If the access code is valid according to the validation steps, it should be added to the "valid codes" array. If the code is invalid, it should be added to the "invalid codes" array. If the user enters the code 0, the program should display the valid and invalid codes arrays and stop. Error handling for non-integer inputs is not required.
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
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