結果
| 問題 |
No.695 square1001 and Permutation 4
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-01-27 20:40:57 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 1,064 ms / 7,000 ms |
| コード長 | 3,556 bytes |
| コンパイル時間 | 1,872 ms |
| コンパイル使用メモリ | 150,296 KB |
| 実行使用メモリ | 42,544 KB |
| 最終ジャッジ日時 | 2024-06-22 04:38:08 |
| 合計ジャッジ時間 | 7,424 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 12 |
ソースコード
// 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);
}
}
}