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fixed readme

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Thorn Avery 2019-07-23 12:33:08 +12:00
parent 32b4e078ea
commit d935e95106
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README.md
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@ -5,15 +5,25 @@ bad attempts at solving interview questions
## The Problem - Verbatim ## The Problem - Verbatim
Write a small program which: Write a small program which:
accepts on the command line an odd number N accepts on the command line an odd number N
outputs a sequence of numbers corresponding to the following steps: outputs a sequence of numbers corresponding to the following steps:
the numbers 1 through N^2 are written in a grid the numbers 1 through N^2 are written in a grid
the first number in the sequence is the number in the center of the grid the first number in the sequence is the number in the center of the grid
the subsequent numbers are found by spiraling out clockwise, starting to the right the subsequent numbers are found by spiraling out clockwise, starting to the right
For example, for N = 3 we have the grid: For example, for N = 3 we have the grid:
```
1 2 3 1 2 3
4 5 6 4 5 6
7 8 9 7 8 9
```
So we start with 5, head right to 6, then down to 9, left through 8 and 7, up through 4 and 1 and finally right through 2 and 3. This gives the output: So we start with 5, head right to 6, then down to 9, left through 8 and 7, up through 4 and 1 and finally right through 2 and 3. This gives the output:
5, 6, 9, 8, 7, 4, 1, 2, 3, end 5, 6, 9, 8, 7, 4, 1, 2, 3, end
@ -26,5 +36,5 @@ IMPORTANT: your solution should not make use of arrays or matrices of numbers. I
``` ```
ghc -02 -Wall Spiral.hs -o spiral ghc -02 -Wall Spiral.hs -o spiral
spiral ./spiral
``` ```