Submission #1948760


Source Code Expand

n, h = gets.not_nil!.split.map(&.to_i)
d = Array(Tuple(Int32, Int32)).new
n.times do
  a, b = gets.not_nil!.split.map(&.to_i)
  d << {a, 0} << {b, 1}
end
ans = 0
d.sort.reverse.each do |v, last|
  if last == 1
    h -= v
    ans += 1
    break if h <= 0
  else
    ans += (h + v - 1) / v
    break
  end
end
puts ans

Submission Info

Submission Time
Task D - Katana Thrower
User tomerun
Language Crystal (0.20.5)
Score 400
Code Size 335 Byte
Status AC
Exec Time 236 ms
Memory 17660 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 4
AC × 24
Set Name Test Cases
Sample a01, a02, a03, a04
All a01, a02, a03, a04, b05, b06, b07, b08, b09, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20, b21, b22, b23, b24
Case Name Status Exec Time Memory
a01 AC 2 ms 636 KB
a02 AC 2 ms 636 KB
a03 AC 2 ms 636 KB
a04 AC 2 ms 636 KB
b05 AC 2 ms 636 KB
b06 AC 236 ms 14076 KB
b07 AC 2 ms 636 KB
b08 AC 232 ms 17660 KB
b09 AC 2 ms 636 KB
b10 AC 2 ms 636 KB
b11 AC 2 ms 636 KB
b12 AC 2 ms 636 KB
b13 AC 164 ms 15484 KB
b14 AC 163 ms 14588 KB
b15 AC 162 ms 15356 KB
b16 AC 165 ms 14844 KB
b17 AC 201 ms 14716 KB
b18 AC 187 ms 14716 KB
b19 AC 175 ms 14076 KB
b20 AC 182 ms 15228 KB
b21 AC 188 ms 15228 KB
b22 AC 196 ms 13820 KB
b23 AC 2 ms 636 KB
b24 AC 6 ms 892 KB