Cipher or Decipher the number according to the second input - 3 keys - order [1 2 3 2 1 2 3 ......] - MATLAB Cody - MATLAB Central

Problem 48175. Cipher or Decipher the number according to the second input - 3 keys - order [1 2 3 2 1 2 3 ......]

Difficulty:Rate
You will be given an input number. You have to figure out the cipher keys and match it with given input and cipher it and decipher it according to second input.
The following are not real keys, just an example:
ref = [0 1 2 3 4 5 6 7 8 9];
key_1 = [1 2 3 4 5 6 7 8 9 0];
key_2 = [3 4 5 6 7 8 9 0 1 2];
key_3 = [2 3 4 5 6 7 8 9 0 1];
For example, if x = 12321, y = 1:
output = 25552
(Hint: index: 1 -> key 1, 2 -> key 2, 3 -> key 3, 4 -> key 2, 5 -> key 1, 6 -> key 2, 7 -> key 3, 8 -> key 2, 9 -> key 1, ...)
Or, if x = 25552, y = 2:
output = 12321

Solution Stats

50.0% Correct | 50.0% Incorrect
Last Solution submitted on Nov 20, 2024

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Number theory
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