結果
| 問題 |
No.152 貯金箱の消失
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-01-25 17:30:22 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 12 ms / 5,000 ms |
| コード長 | 3,009 bytes |
| コンパイル時間 | 1,698 ms |
| コンパイル使用メモリ | 149,052 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-06-22 04:29:22 |
| 合計ジャッジ時間 | 2,205 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 12 |
コンパイルメッセージ
/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
// URL: https://yukicoder.me/problems/no/152
import std.algorithm, std.array, std.container, std.math, std.range, std.typecons, 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 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;
alias assignable = hasAssignableElements;
auto getV(T...)(ref T v) { foreach (ref w; v) get(w); }
auto getA(T)(size_t n, ref T v) if (assignable!T) { v = new T(n); foreach (ref w; v) get(w); }
auto getC(T...)(size_t n, ref T v) if (allSatisfy!(assignable, 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 (assignable!T && assignable!(ElementType!T))
{
v = new T(r); foreach (ref w; v) getA(c, w);
}
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);
}
}
}