The barcode used by the U.S. Postal System to route mail is defined as follows: Each decimal digit in the ZIP code is encoded using a sequence of three half-height and two full-height bars. The barcode starts and ends with a full-height bar (the guard rail) and includes a checksum digit (after the five- digit ZIP code or ZIP + 4), computed by summing up the original digits modulo 10. Define the following functions: • Draw a half-height or full-height bar on stddraw. • Given a digit, draw its sequence of bars. • Compute the checksum digit. Also define global code that read in a five- (or nine-) digit ZIP code as the command-line argument and draws the corresponding postal barcode. Value Encoding 1 ll 2 ull 3 ul.

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The barcode used by the U.S. Postal System to route mail is defined as follows: Each decimal digit in the ZIP code is encoded using a sequence of
three half-height and two full-height bars. The barcode starts and ends with a full-height bar (the guard rail) and includes a checksum digit (after the five-
digit ZIP code or ZIP + 4), computed by summing up the original digits modulo 10.
Define the following functions:
• Draw a half-height or full-height bar on stddraw.
• Given a digit, draw its sequence of bars.
Compute the checksum digit.
Also define global code that read in a five- (or nine-) digit ZIP code as the command-line argument and draws the corresponding postal barcode.
Value Encoding
1
ull
2
ull
ull.
3
ilul
illu
7
8.
9.
Transcribed Image Text:The barcode used by the U.S. Postal System to route mail is defined as follows: Each decimal digit in the ZIP code is encoded using a sequence of three half-height and two full-height bars. The barcode starts and ends with a full-height bar (the guard rail) and includes a checksum digit (after the five- digit ZIP code or ZIP + 4), computed by summing up the original digits modulo 10. Define the following functions: • Draw a half-height or full-height bar on stddraw. • Given a digit, draw its sequence of bars. Compute the checksum digit. Also define global code that read in a five- (or nine-) digit ZIP code as the command-line argument and draws the corresponding postal barcode. Value Encoding 1 ull 2 ull ull. 3 ilul illu 7 8. 9.
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