AoC2020/day02/solution1.rb

26 lines
582 B
Ruby
Executable File

#!/bin/env ruby
def parse_line (line)
ret = Hash.new
ret[:pass] = line.split(':')[1].strip
ret[:char] = line.split(' ')[1][0]
ret[:min] = line.split(' ')[0].split('-')[0].to_i
ret[:max] = line.split(' ')[0].split('-')[1].to_i
return ret
end
results = {
:pass => 0,
:fail => 0
}
File.readlines('./input').each do |line|
password = parse_line(line)
count = password[:pass].count(password[:char])
if count <= password[:max] && count >= password[:min]
results[:pass] += 1
else
results[:fail] += 1
end
end
pp results