Pset Cs50

This
 is
 CS50.
  Harvard
 College
 Fall
 2010
 

Problem
 Set
 5:
 Forensics
 

  due
 by
 7:00pm
 on
 Fri
 10/22
 
  Per
 the
 directions
 at
 this
 document’s
 end,
 submitting
 this
 problem
 set
 involves
 submitting
 source
 code
  on
 cloud.cs50.net
 as
 well
 as filling
 out
 a
 Web-­‐based
 form
 (the
 latter
 of
 which
 will
 be
 available
 after
  lecture
 on
 Wed
 10/20),
 which
 may
 take
 a
 few
 minutes,
 so
 best
 not
 to
 wait
 until
 the
 very
 last
 minute,
 
  lest
 you
 spend
 a
 late
 day
 unnecessarily.
 
  Be
 sure that
 your
 code
 is
 thoroughly
 commented
  to
 such
 an
 extent
 that
 lines’
 functionality
 is
 apparent
 from
 comments
 alone.
 
 
  Goals.
 
  •
  Acquaint
 you
 with
 file
 I/O.
  •
  Get
 you
 more
 comfortable
 with
 data
 structures,
 hexadecimal,
 and
 pointers.
  •  Introduce
 you
 to
 computer
 scientists
 across
 campus.
  •
  Help
 Mr.
 Boddy.
 
 
  Recommended
 Reading.
 
  •
  Sections
 21
 –
 26,
 31,
 32,
 35,
 and
 40
 of
 http://www.howstuffworks.com/c.htm.
  •
  Chapters
 18,
 24,
 25,
 27,
 and
 28
 of
 Absolute
 Beginner’s Guide
 to
 C.
  •
  Chapters
 9,
 11,
 14,
 and
 16
 of
 Programming
 in
 C.
 
  •
  Sections
 1
 –
 3
 of
 http://en.wikipedia.org/wiki/BMP_file_format.
  •
  Sections
 1,
 2,
 and
 6
 of
 http://en.wikipedia.org/wiki/Hexadecimal.
  •
  Sections
 1
 –
 5
 and
 7
 of http://en.wikipedia.org/wiki/Jpg.
 
 
 
 
 
 
 
 


 
0
 <
 16
 

This
 is
 CS50.
  Harvard
 College
 Fall
 2010
 

Academic
 Honesty.
 
  All
  work
  that
  you
  do
  toward
  fulfillment
  of
  this
  course’s
  expectations
  must
  be
  your
  own
  unless
  collaboration
 is explicitly
 allowed
 in
 writing
 by
 the
 course’s
 instructor.
 
 Collaboration
 in
 the
 completion
  of
 problem
 sets
 is
 not
 permitted
 unless
 otherwise
 stated
 by
 some
 problem
 set’s
 specification.
 
  Viewing
 or
 copying
 another
 individual’s
 work
 (even
 if
 left
 by a
 printer,
 stored
 in
 an
 executable
 directory,
  or
 accidentally
 shared
 in
 the
 course’s
 virtual
 terminal
 room)
 or
 lifting
 material
 from
 a
 book,
 website,
 or
  other
  source—even
  in
  part—and
  presenting
  it
  as
  your
  own
  constitutes
  academic
  dishonesty,  as
  does
  showing
  or
  giving
  your
  work,
  even
  in
  part,
  to
  another
  student.
 
  Similarly
  is
  dual
  submission
  academic
  dishonesty:
  you
  may
  not
  submit
  the
  same
  or
  similar
  work
  to
  this
  course
  that
  you
  have
  submitted
  or
 will
  submit
 to
 another.
 
 Nor
 may
 you
 provide
 or
 make
 available
 solutions
 to
 problem
 sets
 to
 individuals
 who
  take
 or
 may
 take
 this
 course
 in
 the
 future.
 
 Moreover,
 submission
 of
 any
 work
 that
 you
 intend
 to
 use
  outside
 of
 the...