#679977 (Crystal) No.781 円周上の格子点の数え上げ

• 問題: No.781 円周上の格子点の数え上げ
• ユーザー: te-sh
• 提出日時: 2021-07-21 16:02:45
• 言語: Crystal (1.11.2)
• 結果: AC
• 実行時間: 206 ms / 2,000 ms
• コード長: 4,759 bytes
• コンパイル時間: 15,457 ms
• コンパイル使用メモリ: 302,620 KB
• 実行使用メモリ: 81,092 KB
• 最終ジャッジ日時: 2024-07-17 14:03:22
• 合計ジャッジ時間: 14,993 ms
• ジャッジサーバーID （参考情報）: judge1 / judge5

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 6,812 KB
testcase_01	AC	2 ms; 6,940 KB
testcase_02	AC	2 ms; 6,940 KB
testcase_03	AC	2 ms; 6,940 KB
testcase_04	AC	2 ms; 6,944 KB
testcase_05	AC	2 ms; 6,940 KB
testcase_06	AC	2 ms; 6,940 KB
testcase_07	AC	3 ms; 6,940 KB
testcase_08	AC	161 ms; 41,872 KB
testcase_09	AC	165 ms; 41,868 KB
testcase_10	AC	2 ms; 6,944 KB
testcase_11	AC	2 ms; 6,940 KB
testcase_12	AC	184 ms; 63,336 KB
testcase_13	AC	206 ms; 81,092 KB
testcase_14	AC	7 ms; 6,940 KB
testcase_15	AC	2 ms; 6,940 KB
testcase_16	AC	2 ms; 6,944 KB
testcase_17	AC	113 ms; 49,228 KB
testcase_18	AC	85 ms; 25,988 KB
testcase_19	AC	94 ms; 26,604 KB
testcase_20	AC	92 ms; 26,716 KB

コンパイルメッセージ

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:134:15

 134 | { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
             ^
Warning: Deprecated use of splat operator. Use `#splat` instead

In Main.cr:133:19

 133 | def get({{ *(1..i).map { |j| "k#{j}".id } }})
                   ^
Warning: Deprecated use of splat operator. Use 

ソースコード

def solve(io)
  x, y = io.get2

  c = Array.new(y+1, 0)
  (0..y.isqrt).each do |i|
    (1..y.isqrt).each do |j|
      r = i**2 + j**2
      c[r] += 1 if r <= y
    end
  end

  io.put c[x..y].max * 4
end

struct Int
  def cdiv(b : Int)
    (self + b - 1) // b
  end

  def bit?(i : Int)
    bit(i) == 1
  end

  def set_bit(i : Int)
    self | (self.class.new(1) << i)
  end

  def reset_bit(i : Int)
    self & ~(self.class.new(1) << i)
  end

  {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "0.34.0") < 0 %}
    def bit_length : Int32
      x = self < 0 ? ~self : self

      if x.is_a?(Int::Primitive)
        Int32.new(sizeof(self) * 8 - x.leading_zeros_count)
      else
        to_s(2).size
      end
    end
  {% end %}
end

struct Int32
  SQRT_MAX = 46_340_i32

  def isqrt
    m = SQRT_MAX
    r = (1_i32..SQRT_MAX).bsearch { |i| i**2 > self }
    r.nil? ? SQRT_MAX : r - 1
  end
end

struct Int64
  SQRT_MAX = 3_037_000_499_i64

  def isqrt
    r = (1_i64..SQRT_MAX).bsearch { |i| i**2 > self }
    r.nil? ? SQRT_MAX : r - 1
  end
end

struct Float64
  def near_zero?
    self.abs < EPSILON
  end
end

struct Number
  {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "1.1.0") < 0 %}
    def zero?
      self == 0
    end

    def positive?
      self > 0
    end

    def negative?
      self < 0
    end
  {% end %}

  {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "0.36.0") < 0 %}
    def self.additive_identity
      zero
    end

    def self.multiplicative_identity
      new(1)
    end
  {% end %}
end

class Array
  macro new_md(*args, &block)
    {% if !block %}
      {% for arg, i in args[0...-2] %}
        Array.new({{arg}}) {
      {% end %}
      Array.new({{args[-2]}}, {{args[-1]}})
      {% for arg in args[0...-2] %}
        }
      {% end %}
    {% else %}
      {% for arg, i in args %}
        Array.new({{arg}}) { |_i{{i}}|
      {% end %}
      {% for block_arg, i in block.args %}
        {{block_arg}} = _i{{i}}
      {% end %}
      {{block.body}}
      {% for arg in args %}
        }
      {% end %}
    {% end %}
  end
end

class ProconIO
  def initialize(@ins : IO = STDIN, @outs : IO = STDOUT)
    @buf = IO::Memory.new("")
  end

  def get(k : T.class = Int32) forall T
    get_v(k)
  end

  macro define_get
    {% for i in (2..9) %}
      def get({{ *(1..i).map { |j| "k#{j}".id } }})
        { {{ *(1..i).map { |j| "get(k#{j})".id } }} }
      end
    {% end %}
  end
  define_get

  macro define_getn
    {% for i in (2..9) %}
      def get{{i}}(k : T.class = Int32) forall T
        get({{ *(1..i).map { "k".id } }})
      end
    {% end %}
  end
  define_getn

  def get_a(n : Int, k : T.class = Int32) forall T
    Array.new(n) { get_v(k) }
  end

  def get_c(n : Int, k : T.class = Int32) forall T
    get_a(n, k)
  end

  macro define_get_c
    {% for i in (2..9) %}
      def get_c(n : Int, {{ *(1..i).map { |j| "k#{j}".id } }})
        a = Array.new(n) { get({{ *(1..i).map { |j| "k#{j}".id } }}) }
        { {{ *(1..i).map { |j| "a.map { |e| e[#{j-1}] }".id } }} }
      end
    {% end %}
  end
  define_get_c

  macro define_getn_c
    {% for i in (2..9) %}
      def get{{i}}_c(n : Int, k : T.class = Int32) forall T
        get_c(n, {{ *(1..i).map { "k".id } }})
      end
    {% end %}
  end
  define_getn_c

  def get_m(r : Int, c : Int, k : T.class = Int32) forall T
    Array.new(r) { get_a(c, k) }
  end

  macro define_put
    {% for i in (1..9) %}
      def put({{ *(1..i).map { |j| "v#{j}".id } }}, *, delimiter = " ")
        {% for j in (1..i) %}
          print_v(v{{j}}, delimiter)
          {% if j < i %}@outs << delimiter{% end %}
        {% end %}
        @outs.puts
      end
    {% end %}
  end
  define_put

  def put_e(*vs)
    put(*vs)
    exit
  end

  def put_f(*vs)
    put(*vs)
    @outs.flush
  end


  private def get_v(k : Int32.class); get_token.to_i32; end
  private def get_v(k : Int64.class); get_token.to_i64; end
  private def get_v(k : UInt32.class); get_token.to_u32; end
  private def get_v(k : UInt64.class); get_token.to_u64; end
  private def get_v(k : Float64.class); get_token.to_f64; end
  private def get_v(k : String.class); get_token; end

  private def get_token
    loop do
      token = @buf.gets(' ', chomp: true)
      break token unless token.nil?
      @buf = IO::Memory.new(@ins.read_line)
    end
  end

  private def print_v(v, dlimiter)
    @outs << v
  end

  private def print_v(v : Enumerable, delimiter)
    v.each_with_index do |e, i|
      @outs << e
      @outs << delimiter if i < v.size - 1
    end
  end
end

macro min_u(a, b)
  {{a}} = Math.min({{a}}, {{b}})
end

macro max_u(a, b)
  {{a}} = Math.max({{a}}, {{b}})
end

macro zip(a, *b, &block)
  {{a}}.zip({{*b}}) {{block}}
end

solve(ProconIO.new)