anonymous
  • anonymous
Hello again, I hope you can help me with this. I don't quite understand the difference between the functions build_coder and build_encoder in ps4. Can someone explain it to me? Thanks.
MIT 6.00 Intro Computer Science (OCW)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions.

anonymous
  • anonymous
Hello again, I hope you can help me with this. I don't quite understand the difference between the functions build_coder and build_encoder in ps4. Can someone explain it to me? Thanks.
MIT 6.00 Intro Computer Science (OCW)
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

rsmith6559
  • rsmith6559
Judging by the response, we're all too lazy to find the code so that we can help. Post the functions.
anonymous
  • anonymous
Sure, there's no code, but this are the guidelines provided in the PS. I don't quite understand the difference between both. After reading the guidelines again, I'm thinking that I could just define build_encoder to be a call to build_coder and return the dictionary built by the coder function. def build_coder(shift): """ Returns a dict that can apply a Caesar cipher to a letter. The cipher is defined by the shift value. Ignores non-letter characters like punctuation and numbers. shift: -27 < int < 27 returns: dict Example: >>> build_coder(3) {' ': 'c', 'A': 'D', 'C': 'F', 'B': 'E', 'E': 'H', 'D': 'G', 'G': 'J', 'F': 'I', 'I': 'L', 'H': 'K', 'K': 'N', 'J': 'M', 'M': 'P', 'L': 'O', 'O': 'R', 'N': 'Q', 'Q': 'T', 'P': 'S', 'S': 'V', 'R': 'U', 'U': 'X', 'T': 'W', 'W': 'Z', 'V': 'Y', 'Y': 'A', 'X': ' ', 'Z': 'B', 'a': 'd', 'c': 'f', 'b': 'e', 'e': 'h', 'd': 'g', 'g': 'j', 'f': 'i', 'i': 'l', 'h': 'k', 'k': 'n', 'j': 'm', 'm': 'p', 'l': 'o', 'o': 'r', 'n': 'q', 'q': 't', 'p': 's', 's': 'v', 'r': 'u', 'u': 'x', 't': 'w', 'w': 'z', 'v': 'y', 'y': 'a', 'x': ' ', 'z': 'b'} (The order of the key-value pairs may be different.) """ ### TODO. def build_encoder(shift): """ Returns a dict that can be used to encode a plain text. For example, you could encrypt the plain text by calling the following commands >>>encoder = build_encoder(shift) >>>encrypted_text = apply_coder(plain_text, encoder) The cipher is defined by the shift value. Ignores non-letter characters like punctuation and numbers. shift: 0 <= int < 27 returns: dict Example: >>> build_encoder(3) {' ': 'c', 'A': 'D', 'C': 'F', 'B': 'E', 'E': 'H', 'D': 'G', 'G': 'J', 'F': 'I', 'I': 'L', 'H': 'K', 'K': 'N', 'J': 'M', 'M': 'P', 'L': 'O', 'O': 'R', 'N': 'Q', 'Q': 'T', 'P': 'S', 'S': 'V', 'R': 'U', 'U': 'X', 'T': 'W', 'W': 'Z', 'V': 'Y', 'Y': 'A', 'X': ' ', 'Z': 'B', 'a': 'd', 'c': 'f', 'b': 'e', 'e': 'h', 'd': 'g', 'g': 'j', 'f': 'i', 'i': 'l', 'h': 'k', 'k': 'n', 'j': 'm', 'm': 'p', 'l': 'o', 'o': 'r', 'n': 'q', 'q': 't', 'p': 's', 's': 'v', 'r': 'u', 'u': 'x', 't': 'w', 'w': 'z', 'v': 'y', 'y': 'a', 'x': ' ', 'z': 'b'} (The order of the key-value pairs may be different.) HINT : Use build_coder. """ ### TODO.
rsmith6559
  • rsmith6559
Those outputs do appear to be identical, but the real proof is the Python code for each of those functions.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
I noticed another problem with this problem set.. The dictionary example given is not correct, from memory I think there's two issues: 1) the encoded letters has an extra ' ' and missing a 'c'. 2) if the plaintext letters are listed [" ", a-z, A-Z]. Then a shift of 3 will not result in the order given in the example.

Looking for something else?

Not the answer you are looking for? Search for more explanations.