Submission #1153924

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Source Code Expand

n = gets.to_i
tstbl = Array.new(n) { gets.chomp.split('-') }.sort

stat = []

tstbl.each do |s, e|
  sh = s[0, 2].to_i
  sm = s[2, 2].to_i / 5 * 5
  sfmt = format('%02d%02d', sh, sm)

  eh = e[0, 2].to_i
  em = (e[2, 2].to_i + 4) / 5 * 5
  if em == 60
    eh += 1
    em = 0
  end
  efmt = format('%02d%02d', eh, em)

  current = [sfmt, efmt]
  if stat.empty?
    stat << current
  else
    prev = stat.last
    if prev[1] >= current[0]
      stat.last[1] = [prev[1], current[1]].max
    else
      stat << current
    end
  end
end

stat.each { |st| puts st.join('-') }

Submission Info

Judge Result