Created
March 20, 2017 13:57
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| def cetakPola(size=1) | |
| arr = Array.new(size) { Array.new(size) } | |
| chars = (size**2).to_s.size | |
| maks = size-1 | |
| x = maks / 2 | |
| y = maks / 2 | |
| (1..size).each do |ps| | |
| start = (ps-1)**2 + 1 | |
| ends = ps**2 | |
| mid = start + ((ends - start) / 2) | |
| if ps == 1 | |
| arr[x][y] = 1 | |
| y += 1 | |
| elsif ps.even? | |
| #right side move down | |
| (start..mid).each { |i| arr[x][y] = i; x += 1} | |
| #move cursor | |
| y -= 1 | |
| x -= 1 | |
| #bottom side move left | |
| (mid+1..ends).each { |i| arr[x][y] = i; y -= 1} | |
| else | |
| #left side move up | |
| (start..mid).each { |i| arr[x][y] = i; x -= 1} | |
| #move cursor | |
| y += 1 | |
| x += 1 | |
| #upper side move right | |
| (mid+1..ends).each { |i| arr[x][y] = i; y += 1} | |
| end | |
| end | |
| p chars | |
| arr.each do |a| | |
| a = a.map { |i| i.to_s.ljust( chars, ' ')} | |
| print a.join(' '),"\n" | |
| end | |
| end | |
| cetakPola() | |
| cetakPola(1) | |
| cetakPola(2) | |
| cetakPola(3) | |
| cetakPola(4) |
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