Submission #115226

---

Source Code Expand

n = gets.to_i
tstbl = []
n.times {
  tstbl << gets.chomp.split("-")
}
tstbl.sort!

stat = []

tstbl.each { |s, e|

  sh = s[0, 2].to_i
  sm = s[2, 2].to_i / 5 * 5
  sfmt = sprintf("%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 = sprintf("%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
}

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

Submission Info

Judge Result