Submission #2508398

---

Source Code Expand

N = gets.to_i
rain = Array.new(24*12+1, 0)
N.times do |i|
    str = gets.chomp
    sh = str[0..1].to_i
    sm = str[2..3].to_i
    eh = str[5..6].to_i
    em = str[7..8].to_i
    st = (sh * 60 + sm) / 5
    et = (eh * 60 + em - 1) / 5 + 1
    rain[st] += 1
    rain[et] -= 1
end

(rain.length-1).times do |i|
    rain[i+1] += rain[i]
end

st = nil
et = nil
ans = []
rain.length.times do |i|
    str = sprintf("%02d%02d", i/12, (i%12)*5)
    if rain[i] > 0
        st ||= str
    else
        if st
            puts [st, str].join('-')
        end
        st = nil
    end
end

Submission Info

Compile Error

./Main.rb:20: warning: assigned but unused variable - et
./Main.rb:21: warning: assigned but unused variable - ans

Judge Result