結果

問題 No.152 貯金箱の消失
コンテスト
ユーザー te-sh
提出日時 2020-02-21 17:13:17
言語 D
(dmd 2.109.1)
結果
AC  
実行時間 10 ms / 5,000 ms
コード長 3,934 bytes
コンパイル時間 709 ms
コンパイル使用メモリ 120,356 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-06-22 05:19:06
合計ジャッジ時間 1,234 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
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
other AC * 12
権限があれば一括ダウンロードができます
コンパイルメッセージ
Main.d(138): Deprecation: function `Main.IO!(makeGlobal, makeGlobal).IO.put!("{}", int).put.putMain!(c, int).putMain` function requires a dual-context, which is deprecated
Main.d-mixin-108(108):        instantiated from here: `putMain!(c, int)`
Main.d(20):        instantiated from here: `put!("{}", int)`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/numeric.d(2999): Warning: cannot inline function `std.numeric.gcdImpl!uint.gcdImpl`

ソースコード

diff # 

// URL: https://yukicoder.me/problems/no/152

import std.algorithm, std.array, std.bitmanip, std.container, std.conv, std.format,
       std.functional, std.math, std.range, std.traits, std.typecons, std.stdio, std.string;
import std.numeric;

version(unittest) {} else
void main()
{
  int L; io.getV(L);

  auto l = L/4, r = 0;
  foreach (m; 2..l.isqrt)
    for (auto n = m%2+1; n < m; n += 2) {
      if (gcd(m, n) != 1) continue;
      if (m*(m+n)*2 > l) break;
      ++r;
    }

  io.put(r%mod);
}

const mod = 1000003;

pure nothrow @nogc @safe
{
  auto lowerBoundBy(alias conv = "a", alias comp = "a<b", R, T)(const R a, const T v)
  {
    return a.sortedTuple!(conv, comp).lowerBound(tuple(a.front, v)).map!"a[0]";
  }

  auto upperBoundBy(alias conv = "a", alias comp = "a<b", R, T)(const R a, const T v)
  {
    return a.sortedTuple!(conv, comp).upperBound(tuple(a.front, v)).map!"a[0]";
  }

  auto sortedTuple(alias conv = "a", alias comp = "a<b", R)(const R a)
  {
    alias convFun = unaryFun!conv, compFun = binaryFun!comp;
    return a.map!(e => tuple(e, convFun(e))).assumeSorted!((a, b) => compFun(a[1], b[1]));
  }
}

pure nothrow @nogc @safe
{
  T isqrt(T)(T n)
    if (is(T == int) || is(T == long))
  {
    static if (is(T == int)) auto max = 46_341;
    else static if (is(T == long)) auto max = 3_037_000_500L;
    return iota(T(0), max).lowerBoundBy!("a^^2", "a<=b")(n).back;
  }
  T icbrt(T)(T n)
    if (is(T == int) || is(T == long))
  {
    static if (is(T == int)) auto max = 1_291;
    else static if (is(T == long)) auto max = 2_097_152L;
    return iota(T(0), max).lowerBoundBy!("a^^3", "a<=b")(n).back;
  }
}

auto io = IO!()();
import std.stdio;
struct IO(alias IN = stdin, alias OUT = stdout)
{
  import std.meta : allSatisfy;
  import core.stdc.stdlib : exit;

  void getV(T...)(ref T v)
  {
    foreach (ref w; v) get(w);
  }
  void getA(T)(size_t n, ref T v)
    if (hasAssignableElements!T)
  {
    v = new T(n);
    foreach (ref w; v) get(w);
  }
  void getC(T...)(size_t n, ref T v)
    if (allSatisfy!(hasAssignableElements, T))
  {
    foreach (ref w; v) w = new typeof(w)(n);
    foreach (i; 0..n) foreach (ref w; v) get(w[i]);
  }
  void getM(T)(size_t r, size_t c, ref T v)
    if (hasAssignableElements!T && hasAssignableElements!(ElementType!T))
  {
    v = new T(r);
    foreach (ref w; v) getA(c, w);
  }
  template getS(E...)
  {
    void getS(T)(size_t n, ref T v)
    {
      v = new T(n);
      foreach (ref w; v) foreach (e; E) mixin("get(w."~e~");");
    }
  }

  const struct PutConf
  {
    bool newline = true, flush, exit;
    string floatFormat = "%.10f", delimiter = " ";
  }

  void put(alias conf = "{}", T...)(T v)
  {
    mixin("const PutConf c = "~conf~"; putMain!c(v);");
  }
  void putB(alias conf = "{}", S, T)(bool c, S t, T f)
  {
    if (c) put!conf(t);
    else put!conf(f);
  }
  void putRaw(T...)(T v)
  {
    OUT.write(v);
    OUT.writeln;
  }

  private
  {
    dchar[] buf;
    auto sp = (new dchar[](0)).splitter;

    void nextLine()
    {
      IN.readln(buf);
      sp = buf.splitter;
    }
    void get(T)(ref T v)
    {
      if (sp.empty) nextLine();
      v = sp.front.to!T;
      sp.popFront();
    }

    void putMain(PutConf c, T...)(T v)
    {
      foreach (i, w; v) {
        putOne!c(w);
        if (i+1 < v.length) OUT.write(c.delimiter);
      }
      static if (c.newline) OUT.writeln;
      static if (c.flush) OUT.flush();
      static if (c.exit) exit(0);
    }
    void putOne(PutConf c, T)(T v)
    {
      static if (isInputRange!T && !isSomeString!T) putRange!c(v);
      else static if (isFloatingPoint!T) OUT.write(format(c.floatFormat, v));
      else static if (hasMember!(T, "fprint")) v.fprint(OUT);
      else OUT.write(v);
    }
    void putRange(PutConf c, T)(T v)
    {
      auto w = v;
      while (!w.empty) {
        putOne!c(w.front); w.popFront();
        if (!w.empty) OUT.write(c.delimiter);
      }
    }
  }
}
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