I’m not immersed in higher mathematics, therefore most of my programming puzzles tend to involve strings or other items I can easily comprehend. Beyond manipulating characters and strings, for my programming kung fu training I keep returning to the matrix or grid.
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\nA grid is a two-dimensional array in C, a set of rows and columns defined as:<\/p>\n
The two dimensions are specified in brackets after the data type and variable name. They need not be equal, though in my mind equal dimensions define the difference between a grid\/matrix and what I’d call a table.<\/p>\n The two-dimensional, double-bracket notation is merely for your reference. Internally, the grid’s data is stored in a linear fashion. So the same array can be declared as:<\/p>\n To establish For this month’s Exercise, your task is to create a two character grids of the same size, 5-by-5. The first grid is to be initialized randomly, filled with characters ranging from In order, your tasks are:<\/p>\n Please try this Exercise on your own before you peek at my solution<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":" Flip the matrix on its side. Continue reading int grid[8][8];<\/code><\/p>\nint grid[64];<\/code><\/p>\ngrid[]<\/code> as a matrix and not a single file parade of 64 integers, you code the overhead, ensuring that data is manipulated and output in tidy rows and columns.<\/p>\n'a'<\/code> to 'z'<\/code>. The second grid contains the same characters as the first, but it’s rotated 90 degrees clockwise. To wit:<\/p>\nOriginal:
\n j x y i r
\n e n y f h
\n i o o i h
\n i d k l u
\n g x c q b
\nRotated:
\n g i i e j
\n x d o n x
\n c k o y y
\n q l i f i
\n b u h h r <\/code><\/p>\n\n