9-1.rb

@@ -1,51 +0,0 @@
-#!/usr/bin/env ruby
-
-problem = 9
-input = File.read("#{problem}.input")
-#input = DATA.read
-  .chars
-  .map(&:to_i)
-
-expanded_disk = []
-
-id = 0
-type = :file
-input.each do
-  if type == :free
-    _1.times { expanded_disk << "." }
-
-    type = :file
-  else
-    _1.times { expanded_disk << id }
-    id += 1
-    type = :free
-  end
-end
-
-defragmented_disk = Array.new(expanded_disk.size)
-
-l, r = 0, expanded_disk.size - 1
-while l <= r
-  if expanded_disk[l] != "."
-    defragmented_disk[l] = expanded_disk[l]
-    l += 1
-  elsif expanded_disk[r] == "."
-    defragmented_disk[r] = expanded_disk[r]
-    r -= 1
-  else
-    defragmented_disk[l] = expanded_disk[r]
-    defragmented_disk[r] = "."
-    l += 1
-    r -= 1
-  end
-end
-
-checksum = defragmented_disk
-  .map.with_index { _1.to_i * _2.to_i }
-  .sum
-
-p checksum
-
-
-__END__
-2333133121414131402

9-2.rb

@@ -1,75 +0,0 @@
-#!/usr/bin/env ruby
-
-require "debug"
-
-problem = 9
-input = File.read("#{problem}.input")
-#input = DATA.read
-  .chars
-  .map(&:to_i)
-
-expanded_disk = []
-
-id = 0
-type = :file
-input.each do
-  if type == :free
-    _1.times { expanded_disk << "." }
-
-    type = :file
-  else
-    _1.times { expanded_disk << id }
-    id += 1
-    type = :free
-  end
-end
-
-defragmented_disk = expanded_disk.dup
-
-start = Time.now
-r = expanded_disk.size - 1
-while r > 0
-  if expanded_disk[r] == "."
-    r -= 1
-  else
-    rr = r
-    rr -= 1 while expanded_disk[rr] == expanded_disk[r]
-    space = r - rr
-
-    l = expanded_disk.index(".")
-    while l < expanded_disk.size
-      if expanded_disk[l] != "."
-        l += 1
-        next
-      end
-
-      ll = l
-      ll += 1 while defragmented_disk[ll] == "."
-      free = ll - l
-
-      if l > r
-        break
-      elsif free >= space
-        (l..(l + space - 1)).each { defragmented_disk[_1] = expanded_disk[r] }
-        ((rr + 1)..r).each { defragmented_disk[_1] = "." }
-        break
-      else
-        l = ll + 1
-      end
-    end
-
-    r = rr
-  end
-end
-finish = Time.now
-puts "Finished in #{finish - start}"
-
-checksum = defragmented_disk
-  .map.with_index { _1.to_i * _2.to_i }
-  .sum
-
-p checksum
-
-
-__END__
-2333133121414131402

template.rb

@@ -1,11 +1,8 @@
 #!/usr/bin/env ruby
 
 problem = 1
-#input = File.readlines("#{problem}.input")
+input = File.readlines("#{problem}.input")
-input = DATA.read
 
 result = :solution
 
 puts result
-
-__END__