結果

問題 No.695 square1001 and Permutation 4
ユーザー te-shte-sh
提出日時 2020-01-27 20:40:57
言語 D
(dmd 2.106.1)
結果
AC  
実行時間 1,198 ms / 7,000 ms
コード長 3,556 bytes
コンパイル時間 1,520 ms
コンパイル使用メモリ 148,192 KB
実行使用メモリ 42,468 KB
最終ジャッジ日時 2023-09-04 05:10:31
合計ジャッジ時間 9,102 ms
ジャッジサーバーID
(参考情報)
judge13 / judge11
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 1 ms
4,376 KB
testcase_01 AC 45 ms
4,380 KB
testcase_02 AC 70 ms
13,232 KB
testcase_03 AC 44 ms
13,840 KB
testcase_04 AC 221 ms
12,752 KB
testcase_05 AC 299 ms
14,544 KB
testcase_06 AC 641 ms
22,788 KB
testcase_07 AC 437 ms
23,452 KB
testcase_08 AC 453 ms
22,532 KB
testcase_09 AC 652 ms
22,748 KB
testcase_10 AC 130 ms
7,136 KB
testcase_11 AC 1,198 ms
42,152 KB
testcase_12 AC 944 ms
42,468 KB
testcase_13 AC 910 ms
42,168 KB
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ソースコード

diff #

// URL: https://yukicoder.me/problems/no/695

import std.algorithm, std.array, std.container, std.math, std.range, std.typecons, std.string;
import std.bigint;

const mod1 = 168647939L, mod2 = 592951213L, mod = mod1*mod2;

version(unittest) {} else
void main()
{
  int n, m; io.getV(n, m);
  int[] x; io.getA(m, x);

  auto n2 = (n+1)/2, c = new uint[](n2);
  auto calc(int mod)
  {
    c[] = 0; c[0] = 1;
    foreach (i; 1..n2)
      foreach (j; 0..m)
        if (i >= x[j]) (c[i] += c[i-x[j]]) %= mod;

    auto r = 0uL;
    foreach (j; 0..m)
      foreach (i; max(0, n2-x[j])..min(n-x[j], n2))
        (r += cast(ulong)c[i]*c[n-1-(i+x[j])]) %= mod;

    return cast(long)r;
  }

  auto r1 = BigInt(calc(mod1)), r2 = BigInt(calc(mod2));
  long a, b; extGcd(mod1, mod2, a, b);
  io.put(((r1*b*mod2+r2*a*mod1)%mod+mod)%mod);
}

pure T isqrt(T)(T n)
{
  static if (is(T == int)) auto max = 46341;
  else static if (is(T == long)) auto max = 3037000500L;
  auto bs = iota(T(0), max).map!(x => tuple(x, x^^2)).assumeSorted!"a[1]<=b[1]";
  return bs.lowerBound(tuple(0, n)).back[0];
}

pure T icbrt(T)(T n)
{
  static if (is(T == int)) auto max = 1291;
  else static if (is(T == long)) auto max = 2097152L;
  auto bs = iota(T(0), max).map!(x => tuple(x, x^^3)).assumeSorted!"a[1]<=b[1]";
  return bs.lowerBound(tuple(0, n)).back[0];
}

pure T powr(alias pred = "a*b", T, U)(T a, U n, T one)
{
  import std.functional;
  alias predFun = binaryFun!pred;
  if (n == 0) return one;
  auto r = one;
  for (; n > 0; n >>= 1) { if (n&1) r = predFun(r, a); a = predFun(a, a); }
  return r;
}
pure T powr(alias pred = "a*b", T, U)(T a, U n) { return powr!(pred, T, U)(a, n, T(1)); }

pure T extGcd(T)(T a, T b, out T x, out T y)
{
  auto g = a; x = 1; y = 0;
  if (b) { g = extGcd(b, a%b, y, x); y -= a/b*x; }
  return g;
}

auto io = IO!()();
import std.stdio;
struct IO(string floatFormat = "%.10f", string delimiter = " ", alias IN = stdin, alias OUT = stdout)
{
  import std.conv, std.format, std.meta, std.traits;

  auto getV(T...)(ref T v) { foreach (ref w; v) get(w); }
  auto getA(T)(size_t n, ref T v) if (hasAssignableElements!T)
  { v = new T(n); foreach (ref w; v) get(w); }
  auto 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]);
  }
  auto 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...)
  {
    auto getS(T)(size_t n, ref T v)
    {
      v = new T(n); foreach (ref w; v) foreach (e; E) mixin("get(w."~e~");");
    }
  }

  auto put(bool flush = false, T...)(T v)
  {
    foreach (i, w; v) { putA(w); if (i < v.length-1) OUT.write(delimiter); }
    OUT.writeln;
    static if (flush) OUT.flush();
  }
  auto putB(S, T)(bool c, S t, T f) { if (c) put(t); else put(f); }
  auto 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; }
    auto get(T)(ref T v) { if (sp.empty) nextLine(); v = sp.front.to!T; sp.popFront(); }

    auto putR(T)(T v)
    {
      auto w = v;
      while (!w.empty) { putA(w.front); w.popFront(); if (!w.empty) OUT.write(delimiter); }
    }
    auto putA(T)(T v)
    {
      static if (isInputRange!T && !isSomeString!T) putR(v);
      else if (isFloatingPoint!T) OUT.write(format(floatFormat, v));
      else OUT.write(v);
    }
  }
}
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