Transpose in Objective-C
Take input text and output it transposed.
exercism fetch objective-c transpose
Given an input text output it transposed.
Roughly explained, the transpose of a matrix:
is given by:
Rows become columns and columns become rows. See https://en.wikipedia.org/wiki/Transpose.
If the input has rows of different lengths, this is to be solved as follows:
- Pad to the left with spaces.
- Don't pad to the right.
Therefore, transposing this matrix:
In general, all characters from the input should also be present in the transposed output. That means that if a column in the input text contains only spaces on its bottom-most row(s), the corresponding output row should contain the spaces in its right-most column(s).
There are two different methods of getting set up to run the tests with Objective-C:
- Create an Xcode project with a test target which will run the tests.
- Use the ruby gem
objcas a test runner utility.
Both are described in more detail here: http://exercism.io/languages/objective-c
When submitting an exercise, make sure your solution file is in the same directory as the test code.
For example, if you're submitting
Bob.m for the Bob exercise, the submit command would be something like
exercism submit <path_to_exercism_dir>/objective-c/bob/Bob.m.
Reddit r/dailyprogrammer challenge #270 [Easy]. https://www.reddit.com/r/dailyprogrammer/comments/4msu2x/challenge_270_easy_transpose_the_input_text