結果

問題 No.1064 ∪∩∩ / Cup Cap Cap
ユーザー yuruhiya
提出日時 2021-08-24 11:44:43
言語 Crystal
(1.14.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 8,412 bytes
コンパイル時間 15,706 ms
コンパイル使用メモリ 299,836 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-11-14 04:17:34
合計ジャッジ時間 17,094 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 36
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

# require "/template"
# require "./tuple/times"
struct Tuple
  def times(&block) : Nil
    {% begin %}
      {% for i in 0...@type.size %}
        {% if @type[i].has_method?(:each) %}
          self[{{i}}].each do |i{{i}}|
        {% else %}
          self[{{i}}].times do |i{{i}}|
        {% end %}
      {% end %}
      yield({% for i in 0...@type.size %} i{{i}}, {% end %})
      {% for i in 0...@type.size %} end {% end %}
    {% end %}
  end
  private class TimesIterator(T)
    include Iterator(T)
    def initialize(@n : T)
      tuple = {% begin %}
                { {% for i in 0...T.size %} T[{{i}}].zero, {% end %} }
              {% end %}
      @index = tuple.as(T)
      @first = true
    end
    def next
      if @first
        @first = false
        return @index
      end
      {% begin %}
        {%
          type = @type.type_vars[0]
          size = type.size
        %}
        {% for i in 1..size %}
          if @index[{{size - i}}] < @n[{{size - i}}] - 1
            @index = {
              {% for j in 0...size %}
                {% if j < size - i %}
                  @index[{{j}}],
                {% elsif j == size - i %}
                  @index[{{j}}] + 1,
                {% else %}
                  {{type[j]}}.zero,
                {% end %}
              {% end %}
            }
            return @index
          end
        {% end %}
        stop
      {% end %}
    end
  end
  def times
    TimesIterator(self).new(self)
  end
end
# require "./comparable/min_max"
module Comparable(T)
  def min(x : T)
    self > x ? x : self
  end
  def max(x : T)
    self < x ? x : self
  end
end
# require "./array/new"
class Array
  def self.new(sizes : Tuple(*T), initial_value) forall T
    {% begin %}
      {% for i in 0...T.size %} Array.new(sizes[{{i}}]) { {% end %}
      initial_value
      {% for i in 0...T.size %} } {% end %}
    {% end %}
  end
  def self.new(sizes : Tuple(*T), &block) forall T
    {% begin %}
      {% for i in 0...T.size %} Array.new(sizes[{{i}}]) { |index{{i}}| {% end %}
      yield({% for i in 0...T.size %} index{{i}}, {% end %})
      {% for i in 0...T.size %} } {% end %}
    {% end %}
  end
end
# require "./array/change"
class Array(T)
  def chmin(i : Int, value : T)
    (self[i] > value).tap do |f|
      self[i] = value if f
    end
  end
  protected def chmin(i : Int, *indexes, value)
    self[i].chmin(*indexes, value: value)
  end
  def chmin(indexes : Tuple, value)
    chmin(*indexes, value: value)
  end
  def chmax(i : Int, value : T)
    (self[i] < value).tap do |f|
      self[i] = value if f
    end
  end
  protected def chmax(i : Int, *indexes, value)
    self[i].chmax(*indexes, value: value)
  end
  def chmax(indexes : Tuple, value)
    chmax(*indexes, value: value)
  end
end
# require "./scanner"
# ### Specifications
#
# ```plain
# Inside input macro                   | Expanded code
# -------------------------------------+---------------------------------------
# Uppercase string: Int32, Int64, etc. | {}.new(Scanner.s)
# s                                    | Scanner.s
# c                                    | Scanner.c
# Other lowercase string: i, i64, etc. | Scanner.s.to_{}
# operator[]: type[size]               | Array.new(input(size)) { input(type) }
# Tuple literal: {t1, t2, t3}          | {input(t1), input(t2), input(t3)}
# Array literal: [t1, t2, t3]          | [input(t1), input(t2), input(t3)]
# Range literal: t1..t2                | input(t1)..input(t2)
# If: cond ? t1 : t2                   | cond ? input(t1) : input(t2)
# Assign: target = value               | target = input(value)
# ```
#
# ### Examples
#
# Input:
# ```plain
# 5 3
# foo bar
# 1 2 3 4 5
# ```
# ```
# n, m = input(Int32, Int64) # => {5, 10i64}
# input(String, Char[m])     # => {"foo", ['b', 'a', 'r']}
# input(Int32[n])            # => [1, 2, 3, 4, 5]
# ```
# ```
# n, m = input(i, i64) # => {5, 10i64}
# input(s, c[m])       # => {"foo", ['b', 'a', 'r']}
# input(i[n])          # => [1, 2, 3, 4, 5]
# ```
#
# Input:
# ```plain
# 2 3
# 1 2 3
# 4 5 6
# ```
#
# ```
# h, w = input(i, i) # => {2, 3}
# input(i[h, w])     # => [[1, 2, 3], [4, 5, 6]]
# ```
# ```
# input(i[i][i]) # => [[1, 2, 3], [4, 5, 6]]
# ```
#
# Input:
# ```plain
# 5 3
# 3 1 4 2 5
# 1 2
# 2 3
# 3 1
# ```
# ```
# n, m = input(i, i)       # => {5, 3}
# input(i.pred[n])         # => [2, 0, 3, 1, 4]
# input({i - 1, i - 1}[m]) # => [{0, 1}, {1, 2}, {2, 0}]
# ```
#
# Input:
# ```plain
# 3
# 1 2
# 2 2
# 3 2
# ```
# ```
# input({tmp = i, tmp == 1 ? i : i.pred}[i]) # => [{1, 2}, {2, 1}, {3, 1}]
# ```
#
# Input:
# ```plain
# 3
# 1 2
# 2 3
# 3 1
# ```
# ```
# n = input(i)
# input_column({Int32, Int32}, n) # => {[1, 2, 3], [2, 3, 1]}
# ```
class Scanner
  private def self.skip_to_not_space
    peek = STDIN.peek
    not_space = peek.index { |x| x != 32 && x != 10 } || peek.size
    STDIN.skip(not_space)
  end
  def self.c
    skip_to_not_space
    STDIN.read_char.not_nil!
  end
  def self.s
    skip_to_not_space
    peek = STDIN.peek
    if index = peek.index { |x| x == 32 || x == 10 }
      STDIN.skip(index + 1)
      return String.new(peek[0, index])
    end
    String.build do |buffer|
      loop do
        buffer.write peek
        STDIN.skip(peek.size)
        peek = STDIN.peek
        break if peek.empty?
        if index = peek.index { |x| x == 32 || x == 10 }
          buffer.write peek[0, index]
          STDIN.skip(index)
          break
        end
      end
    end
  end
end
macro internal_input(type, else_ast)
  {% if Scanner.class.has_method?(type.id) %}
    Scanner.{{type.id}}
  {% elsif type.stringify == "String" %}
    Scanner.s
  {% elsif type.stringify == "Char" %}
    Scanner.c
  {% elsif type.stringify =~ /[A-Z][a-z0-9_]*/ %}
    {{type.id}}.new(Scanner.s)
  {% elsif String.has_method?("to_#{type}".id) %}
    Scanner.s.to_{{type.id}}
  {% else %}
    {{else_ast}}
  {% end %}
end
macro internal_input_array(type, args)
  {% for i in 0...args.size %}
    %size{i} = input({{args[i]}})
  {% end %}
  {% begin %}
    {% for i in 0...args.size %} Array.new(%size{i}) { {% end %}
      input({{type.id}})
    {% for i in 0...args.size %} } {% end %}
  {% end %}
end
macro input(type)
  {% if type.is_a?(Call) %}
    {% if type.receiver.is_a?(Nop) %}
      internal_input(
        {{type.name}}, {{type.name}}(
          {% for argument in type.args %} input({{argument}}), {% end %}
        )
      )
    {% elsif type.name.stringify == "[]" %}
      internal_input_array({{type.receiver}}, {{type.args}})
    {% else %}
      input({{type.receiver}}).{{type.name.id}}(
        {% for argument in type.args %} input({{argument}}), {% end %}
      ) {{type.block}}
    {% end %}
  {% elsif type.is_a?(TupleLiteral) %}
    { {% for i in 0...type.size %} input({{type[i]}}), {% end %} }
  {% elsif type.is_a?(ArrayLiteral) %}
    [ {% for i in 0...type.size %} input({{type[i]}}), {% end %} ]
  {% elsif type.is_a?(RangeLiteral) %}
    Range.new(input({{type.begin}}), input({{type.end}}), {{type.excludes_end?}})
  {% elsif type.is_a?(If) %}
    {{type.cond}} ? input({{type.then}}) : input({{type.else}})
  {% elsif type.is_a?(Assign) %}
    {{type.target}} = input({{type.value}})
  {% else %}
    internal_input({{type.id}}, {{type.id}})
  {% end %}
end
macro input(*types)
  { {% for type in types %} input({{type}}), {% end %} }
end
macro input_column(types, size)
  {% for type, i in types %}
    %array{i} = Array({{type}}).new({{size}})
  {% end %}
  {{size}}.times do
    {% for type, i in types %}
      %array{i} << input({{type}})
    {% end %}
  end
  { {% for type, i in types %} %array{i}, {% end %} }
end
module Math
  # Solve `x = ax^2 + bx + c`.
  def quadratic_equation(a : Int64, b : Int64, c : Int64)
    if a == 0 && b == 0 && c == 0
      nil
    elsif a == 0 && b == 0
      [] of Float64
    elsif a == 0
      [-(c / b)]
    elsif (d = b * b - 4 * a * c) < 0
      [] of Float64
    elsif d == 0
      [-b / (a * 2)]
    else
      x1 = (b > 0) ? (-b - Math.sqrt(d)) / (a * 2) : (-b + Math.sqrt(d)) / (a * 2)
      x2 = (c / a) / x1
      [*{x1, x2}.minmax]
    end
  end
end
a, b, c, d = read_line.split.map(&.to_i64)
ans = Math.quadratic_equation(2, a - c, b - d).not_nil!
case ans.size
when 0
  puts "No"
when 1
  puts "Yes"
when 2
  x1, x2 = ans
  y1, y2 = {x1, x2}.map { |x| x * x + a * x + b }
  p = (y2 - y1) / (x2 - x1)
  q = y1 - x1 * p
  puts "#{p} #{q}"
end
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