結果
| 問題 | No.2376 障害物競プロ |
| ユーザー |
 KumaTachiRen
|
| 提出日時 | 2023-10-02 10:52:11 |
| 言語 | C# (.NET 8.0.203) |
| 結果 |
AC
|
| 実行時間 | 1,055 ms / 4,000 ms |
| コード長 | 20,137 bytes |
| コンパイル時間 | 7,750 ms |
| コンパイル使用メモリ | 170,556 KB |
| 実行使用メモリ | 209,484 KB |
| 最終ジャッジ日時 | 2024-07-26 13:41:03 |
| 合計ジャッジ時間 | 64,283 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge5 |
（要ログイン）
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 | 54 ms
29,696 KB |
| testcase_01 | AC | 54 ms
29,696 KB |
| testcase_02 | AC | 49 ms
29,312 KB |
| testcase_03 | AC | 48 ms
29,568 KB |
| testcase_04 | AC | 190 ms
42,736 KB |
| testcase_05 | AC | 237 ms
46,448 KB |
| testcase_06 | AC | 172 ms
38,144 KB |
| testcase_07 | AC | 585 ms
47,728 KB |
| testcase_08 | AC | 596 ms
47,472 KB |
| testcase_09 | AC | 551 ms
47,216 KB |
| testcase_10 | AC | 603 ms
47,604 KB |
| testcase_11 | AC | 535 ms
46,192 KB |
| testcase_12 | AC | 575 ms
46,316 KB |
| testcase_13 | AC | 567 ms
47,600 KB |
| testcase_14 | AC | 561 ms
47,212 KB |
| testcase_15 | AC | 516 ms
46,444 KB |
| testcase_16 | AC | 646 ms
46,832 KB |
| testcase_17 | AC | 543 ms
45,932 KB |
| testcase_18 | AC | 556 ms
45,936 KB |
| testcase_19 | AC | 682 ms
51,308 KB |
| testcase_20 | AC | 657 ms
50,284 KB |
| testcase_21 | AC | 678 ms
50,284 KB |
| testcase_22 | AC | 372 ms
45,172 KB |
| testcase_23 | AC | 375 ms
40,448 KB |
| testcase_24 | AC | 178 ms
42,992 KB |
| testcase_25 | AC | 112 ms
37,760 KB |
| testcase_26 | AC | 171 ms
44,656 KB |
| testcase_27 | AC | 163 ms
42,480 KB |
| testcase_28 | AC | 221 ms
37,760 KB |
| testcase_29 | AC | 116 ms
37,376 KB |
| testcase_30 | AC | 349 ms
36,480 KB |
| testcase_31 | AC | 185 ms
38,272 KB |
| testcase_32 | AC | 71 ms
31,872 KB |
| testcase_33 | AC | 162 ms
34,688 KB |
| testcase_34 | AC | 138 ms
35,456 KB |
| testcase_35 | AC | 84 ms
35,072 KB |
| testcase_36 | AC | 430 ms
40,684 KB |
| testcase_37 | AC | 267 ms
44,780 KB |
| testcase_38 | AC | 136 ms
37,248 KB |
| testcase_39 | AC | 487 ms
43,504 KB |
| testcase_40 | AC | 366 ms
35,072 KB |
| testcase_41 | AC | 119 ms
37,120 KB |
| testcase_42 | AC | 1,053 ms
50,028 KB |
| testcase_43 | AC | 1,055 ms
209,484 KB |
コンパイルメッセージ
復元対象のプロジェクトを決定しています... /home/judge/data/code/main.csproj を復元しました (86 ms)。 MSBuild のバージョン 17.9.6+a4ecab324 (.NET) main -> /home/judge/data/code/bin/Release/net8.0/main.dll main -> /home/judge/data/code/bin/Release/net8.0/publish/
ソースコード
using System;
using System.ComponentModel;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.Contracts;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Runtime.Intrinsics.X86;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using static Functions;
using static OutputLib;
using ModInt = StaticModInt<Mod998244353>;
static class Program
{
static public void Main(string[] args)
{
Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });
new Solver();
Console.Out.Flush();
}
}
public class Solver
{
public Solver()
{
Solve();
}
void Solve()
{
int n = ri, m = ri;
var x = new int[n, 2];
var y = new int[n, 2];
for (int i = 0; i < n; i++)
for (int j = 0; j < 2; j++)
(x[i, j], y[i, j]) = ri2;
var abcd = new (int a, int b, int c, int d)[m];
for (int i = 0; i < m; i++) abcd[i] = (ri - 1, ri - 1, ri - 1, ri - 1);
bool Check((int x, int y) a, (int x, int y) b, (int x, int y) c, (int x, int y) d)
{
long p = (a.x - b.x) * (c.y - a.y) - (a.y - b.y) * (c.x - a.x);
long q = (a.x - b.x) * (d.y - a.y) - (a.y - b.y) * (d.x - a.x);
return p * q >= 0;
}
var g = new List<(int x, double c)>[2 * n];
for (int i = 0; i < 2 * n; i++) g[i] = new List<(int x, double c)>();
for (int i1 = 0; i1 < n; i1++)
for (int i2 = 0; i2 < n; i2++)
{
if (i1 == i2) continue;
for (int j1 = 0; j1 < 2; j1++)
for (int j2 = 0; j2 < 2; j2++)
{
bool ok = true;
var p1 = (x[i1, j1], y[i1, j1]);
var p2 = (x[i2, j2], y[i2, j2]);
for (int k = 0; k < n; k++)
{
if (k == i1 || k == i2) continue;
var p3 = (x[k, 0], y[k, 0]);
var p4 = (x[k, 1], y[k, 1]);
ok &= Check(p1, p2, p3, p4) || Check(p3, p4, p1, p2);
}
if (ok)
{
int dx = x[i1, j1] - x[i2, j2];
int dy = y[i1, j1] - y[i2, j2];
g[i1 + j1 * n].Add((i2 + j2 * n, Math.Sqrt(dx * dx + dy * dy)));
}
}
}
var dist = new double[2 * n][];
var pq = new MyPriorityQueue<double, (int x, double d)>(x => -x.d);
const double eps = 0.0000001;
for (int root = 0; root < 2 * n; root++)
{
var d = new double[2 * n];
Array.Fill(d, INF);
d[root] = 0;
pq.Enqueue((root, 0));
while (pq.Count > 0)
{
var (u, ud) = pq.Dequeue();
if (d[u] < ud - eps) continue;
foreach (var (v, c) in g[u])
{
var vd = ud + c;
if (d[v] > vd)
{
d[v] = vd;
pq.Enqueue((v, vd));
}
}
}
dist[root] = d;
}
foreach (var (a, b, c, d) in abcd)
{
int u = a + b * n, v = c + d * n;
Write(dist[u][v].ToString("F10"));
}
}
const long INF = 1L << 60;
int ri { [MethodImpl(256)] get => (int)sc.Integer(); }
(int, int) ri2 { [MethodImpl(256)] get => (ri, ri); }
(int, int, int) ri3 { [MethodImpl(256)] get => (ri, ri, ri); }
(int, int, int, int) ri4 { [MethodImpl(256)] get => (ri, ri, ri, ri); }
(int, int, int, int, int) ri5 { [MethodImpl(256)] get => (ri, ri, ri, ri, ri); }
long rl { [MethodImpl(256)] get => sc.Integer(); }
(long, long) rl2 { [MethodImpl(256)] get => (rl, rl); }
(long, long, long) rl3 { [MethodImpl(256)] get => (rl, rl, rl); }
(long, long, long, long) rl4 { [MethodImpl(256)] get => (rl, rl, rl, rl); }
(long, long, long, long, long) rl5 { [MethodImpl(256)] get => (rl, rl, rl, rl, rl); }
uint rui { [MethodImpl(256)] get => (uint)sc.UInteger(); }
ulong rul { [MethodImpl(256)] get => sc.UInteger(); }
double rd { [MethodImpl(256)] get => sc.Double(); }
string rs { [MethodImpl(256)] get => sc.Scan(); }
string rline { [MethodImpl(256)] get => sc.Line(); }
public StreamScanner sc = new StreamScanner(Console.OpenStandardInput());
}
public static class Functions
{
[MethodImpl(256)]
public static int Popcount(ulong x)
{
x = (x & 0x5555555555555555UL) + ((x >> 1) & 0x5555555555555555UL);
x = (x & 0x3333333333333333UL) + ((x >> 2) & 0x3333333333333333UL);
x = (x & 0x0f0f0f0f0f0f0f0fUL) + ((x >> 4) & 0x0f0f0f0f0f0f0f0fUL);
x = (x & 0x00ff00ff00ff00ffUL) + ((x >> 8) & 0x00ff00ff00ff00ffUL);
x = (x & 0x0000ffff0000ffffUL) + ((x >> 16) & 0x0000ffff0000ffffUL);
x = (x & 0x00000000ffffffffUL) + ((x >> 32) & 0x00000000ffffffffUL);
return (int)x;
}
[MethodImpl(256)]
public static int Popcount(int x)
{
x = (x & 0x55555555) + ((x >> 1) & 0x55555555);
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
x = (x & 0x0f0f0f0f) + ((x >> 4) & 0x0f0f0f0f);
x = (x & 0x00ff00ff) + ((x >> 8) & 0x00ff00ff);
x = (x & 0x0000ffff) + ((x >> 16) & 0x0000ffff);
return x;
}
[MethodImpl(256)]
public static int Ctz(long x)
{
if (x == 0) return -1;
return Popcount((ulong)((x & -x) - 1));
}
[MethodImpl(256)]
public static int CeilPow2(int n)
{
int x = 0;
while ((1 << x) < n) x++;
return x;
}
[MethodImpl(256)]
public static int SafeMod(int x, int m)
{
int r = x % m;
return r < 0 ? r + Math.Abs(m) : r;
}
[MethodImpl(256)]
public static long SafeMod(long x, long m)
{
long r = x % m;
return r < 0 ? r + Math.Abs(m) : r;
}
[MethodImpl(256)] public static int Sign(long x) => x == 0 ? 0 : (x < 0 ? -1 : 1);
[MethodImpl(256)] public static int Sign(double x) => x == 0 ? 0 : (x < 0 ? -1 : 1);
[MethodImpl(256)] public static int DigitSum(long n, int d = 10) { long s = 0; while (n > 0) { s += n % d; n /= d; } return (int)s; }
[MethodImpl(256)] public static long Floor(long a, long b) => a >= 0 ? a / b : (a + 1) / b - 1;
[MethodImpl(256)] public static long Ceil(long a, long b) => a > 0 ? (a - 1) / b + 1 : a / b;
[MethodImpl(256)] public static int Gcd(int a, int b) => b == 0 ? a : Gcd(b, a % b);
[MethodImpl(256)] public static long Gcd(long a, long b) => b == 0 ? a : Gcd(b, a % b);
[MethodImpl(256)] public static (long x, long y, long g) ExtGcd(long a, long b) { if (b == 0) return (Sign(a), 0, Math.Abs(a)); long c = SafeMod(a, b); var (x2, y2, g) = ExtGcd(b, c); long x = SafeMod(y2, b); long y = (g - a * x) / b; return (x, y, g); }
[MethodImpl(256)] public static void Swap(ref int x, ref int y) { x ^= y; y ^= x; x ^= y; }
[MethodImpl(256)] public static void Swap(ref long x, ref long y) { x ^= y; y ^= x; x ^= y; }
[MethodImpl(256)] public static void Swap<T>(ref T x, ref T y) { T t = y; y = x; x = t; }
[MethodImpl(256)] public static T Clamp<T>(T x, T l, T r) where T : IComparable<T> => x.CompareTo(l) <= 0 ? l : (x.CompareTo(r) <= 0 ? x : r);
[MethodImpl(256)] public static T Clamp<T>(ref T x, T l, T r) where T : IComparable<T> => x = x.CompareTo(l) <= 0 ? l : (x.CompareTo(r) <= 0 ? x : r);
[MethodImpl(256)] public static void Chmin<T>(ref T x, T y) where T : IComparable<T> { if (x.CompareTo(y) > 0) x = y; }
[MethodImpl(256)] public static void Chmax<T>(ref T x, T y) where T : IComparable<T> { if (x.CompareTo(y) < 0) x = y; }
[MethodImpl(256)] public static int LowerBound(long[] arr, long val, int l = -1, int r = -1) => LowerBound(arr.AsSpan(), t => Sign(t - val), l, r);
[MethodImpl(256)] public static int LowerBound(int[] arr, int val, int l = -1, int r = -1) => LowerBound(arr.AsSpan(), t => t - val, l, r);
[MethodImpl(256)] public static int LowerBound<T>(T[] arr, T val, int l = -1, int r = -1) where T : IComparable<T> => LowerBound(arr.AsSpan(), t => t.CompareTo(val), l, r);
[MethodImpl(256)] public static int LowerBound<T>(T[] arr, Func<T, int> comp, int l = -1, int r = -1) => LowerBound(arr.AsSpan(), comp, l, r);
[MethodImpl(256)] public static int LowerBound<T>(Span<T> data, Func<T, int> comp, int l = -1, int r = -1) { if (data.Length == 0) return -1; if (l == -1) l = 0; if (r == -1) r = data.Length; while (l < r) { int x = (l + r) / 2; if (comp(data[x]) < 0) l = x + 1; else r = x; } return l; }
[MethodImpl(256)] public static string ToBase2(long v, int digit = -1) { if (digit == -1) { digit = 0; while ((v >> digit) > 0) digit++; } var c = new string[digit]; for (int i = 0; i < digit; i++) c[digit - 1 - i] = ((v >> i) & 1) == 0 ? "0" : "1"; return string.Join("", c); }
[MethodImpl(256)] public static string ToBaseN(long v, int n, int digit = -1) { if (digit == -1) { digit = 0; long pow = 1; while (v >= pow) { digit++; pow *= n; } } var c = new int[digit]; for (int i = 0; i < digit; i++, v /= n) c[digit - 1 - i] = (int)(v % n); return string.Join("", c); }
}
public class StreamScanner
{
public StreamScanner(Stream stream) { str = stream; }
private readonly Stream str;
private readonly byte[] buf = new byte[1024];
private int len, ptr;
public bool isEof = false;
public bool IsEndOfStream { get { return isEof; } }
[MethodImpl(256)] private byte read() { if (isEof) throw new EndOfStreamException(); if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } } return buf[ptr++]; }
[MethodImpl(256)] public char Char() { byte b = 0; do b = read(); while (b < 33 || 126 < b); return (char)b; }
[MethodImpl(256)] public string Line() { var sb = new StringBuilder(); for (var b = Char(); b != 10 && !isEof; b = (char)read()) sb.Append(b); return sb.ToString(); }
[MethodImpl(256)] public string Scan() { var sb = new StringBuilder(); for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b); return sb.ToString(); }
[MethodImpl(256)] public long Integer() { long ret = 0; byte b = 0; var ng = false; do b = read(); while (b != '-' && (b < '0' || '9' < b)); if (b == '-') { ng = true; b = read(); } for (; true; b = read()) { if (b < '0' || '9' < b) return ng ? -ret : ret; else ret = ret * 10 + b - '0'; } }
[MethodImpl(256)] public ulong UInteger() { ulong ret = 0; byte b = 0; do b = read(); while (b < '0' || '9' < b); for (; true; b = read()) { if (b < '0' || '9' < b) return ret; else ret = ret * 10 + b - '0'; } }
[MethodImpl(256)] public double Double() => double.Parse(Scan());
}
public static class OutputLib
{
[MethodImpl(256)] public static void WriteJoin<T>(string s, IEnumerable<T> t) => Console.WriteLine(string.Join(s, t));
[MethodImpl(256)] public static void WriteMat<T>(T[,] a) { int sz1 = a.GetLength(0); int sz2 = a.GetLength(1); for (int i = 0; i < sz1; i++) { var b = new T[sz2]; for (int j = 0; j < sz2; j++) b[j] = a[i, j]; WriteJoin(" ", b); } }
[MethodImpl(256)] public static void WriteMat<T>(T[][] a) { for (int i = 0; i < a.Length; i++) WriteJoin(" ", a[i]); }
[MethodImpl(256)] public static void Write(object t) => Console.WriteLine(t.ToString());
[MethodImpl(256)] public static void Write(string str) => Console.WriteLine(str);
[MethodImpl(256)] public static void Write(string str, object arg1) => Console.WriteLine(str, arg1);
[MethodImpl(256)] public static void Write(string str, object arg1, object arg2) => Console.WriteLine(str, arg1, arg2);
[MethodImpl(256)] public static void Write(string str, object arg1, object arg2, object arg3) => Console.WriteLine(str, arg1, arg2, arg3);
[MethodImpl(256)] public static void Write(string str, params object[] arg) => Console.WriteLine(str, arg);
[MethodImpl(256)] public static void WriteFlush(object t) { Console.WriteLine(t.ToString()); Console.Out.Flush(); }
[MethodImpl(256)] public static void WriteError(object t) => Console.Error.WriteLine(t.ToString());
[MethodImpl(256)] public static void Flush() => Console.Out.Flush();
[MethodImpl(256)] public static void YN(bool t) => Console.WriteLine(t ? "YES" : "NO");
[MethodImpl(256)] public static void Yn(bool t) => Console.WriteLine(t ? "Yes" : "No");
[MethodImpl(256)] public static void yn(bool t) => Console.WriteLine(t ? "yes" : "no");
}
public interface IStaticMod
{
uint Mod { get; }
bool IsPrime { get; }
}
public readonly struct Mod1000000007 : IStaticMod
{
public uint Mod => 1000000007;
public bool IsPrime => true;
}
public readonly struct Mod998244353 : IStaticMod
{
public uint Mod => 998244353;
public bool IsPrime => true;
}
public readonly struct StaticModInt<T> : IEquatable<StaticModInt<T>>, IFormattable where T : struct, IStaticMod
{
internal readonly uint _v;
private static readonly T op = default;
public int Value => (int)_v;
public static int Mod => (int)op.Mod;
public static StaticModInt<T> Zero => default;
public static StaticModInt<T> One => new StaticModInt<T>(1u);
[MethodImpl(256)]
public static StaticModInt<T> Raw(int v)
{
var u = unchecked((uint)v);
return new StaticModInt<T>(u);
}
[MethodImpl(256)]
public StaticModInt(long v) : this(Round(v)) { }
[MethodImpl(256)]
public StaticModInt(ulong v) : this((uint)(v % op.Mod)) { }
[MethodImpl(256)]
private StaticModInt(uint v) => _v = v;
[MethodImpl(256)]
private static uint Round(long v)
{
var x = v % op.Mod;
if (x < 0) x += op.Mod;
return (uint)x;
}
[MethodImpl(256)]
public static StaticModInt<T> operator ++(StaticModInt<T> v)
{
var x = v._v + 1;
if (x == op.Mod) x = 0;
return new StaticModInt<T>(x);
}
[MethodImpl(256)]
public static StaticModInt<T> operator --(StaticModInt<T> v)
{
var x = v._v;
if (x == 0) x = op.Mod;
return new StaticModInt<T>(x - 1);
}
[MethodImpl(256)]
public static StaticModInt<T> operator +(StaticModInt<T> lhs, StaticModInt<T> rhs)
{
var v = lhs._v + rhs._v;
if (v >= op.Mod) v -= op.Mod;
return new StaticModInt<T>(v);
}
[MethodImpl(256)]
public static StaticModInt<T> operator -(StaticModInt<T> lhs, StaticModInt<T> rhs)
{
unchecked
{
var v = lhs._v - rhs._v;
if (v >= op.Mod) v += op.Mod;
return new StaticModInt<T>(v);
}
}
[MethodImpl(256)]
public static StaticModInt<T> operator *(StaticModInt<T> lhs, StaticModInt<T> rhs) => new StaticModInt<T>((uint)((ulong)lhs._v * rhs._v % op.Mod));
[MethodImpl(256)]
public static StaticModInt<T> operator /(StaticModInt<T> lhs, StaticModInt<T> rhs) => lhs * rhs.Inv();
[MethodImpl(256)]
public static StaticModInt<T> operator +(StaticModInt<T> v) => v;
[MethodImpl(256)]
public static StaticModInt<T> operator -(StaticModInt<T> v) => new StaticModInt<T>(v._v == 0 ? 0 : op.Mod - v._v);
[MethodImpl(256)]
public static bool operator ==(StaticModInt<T> lhs, StaticModInt<T> rhs) => lhs._v == rhs._v;
[MethodImpl(256)]
public static bool operator !=(StaticModInt<T> lhs, StaticModInt<T> rhs) => lhs._v != rhs._v;
[MethodImpl(256)]
public static implicit operator StaticModInt<T>(int v) => new StaticModInt<T>(v);
[MethodImpl(256)]
public static implicit operator StaticModInt<T>(uint v) => new StaticModInt<T>((long)v);
[MethodImpl(256)]
public static implicit operator StaticModInt<T>(long v) => new StaticModInt<T>(v);
[MethodImpl(256)]
public static implicit operator StaticModInt<T>(ulong v) => new StaticModInt<T>(v);
[MethodImpl(256)]
public static implicit operator long(StaticModInt<T> v) => v._v;
[MethodImpl(256)]
public static implicit operator ulong(StaticModInt<T> v) => v._v;
[MethodImpl(256)]
public StaticModInt<T> Pow(long n)
{
var x = this;
var r = new StaticModInt<T>(1U);
while (n > 0)
{
if ((n & 1) > 0) r *= x;
x *= x;
n >>= 1;
}
return r;
}
[MethodImpl(256)]
public StaticModInt<T> Inv()
{
var (x, y, g) = ExtGcd(_v, op.Mod);
return new StaticModInt<T>(x);
}
[MethodImpl(256)]
static (long x, long y, long g) ExtGcd(long a, long b)
{
if (b == 0) return a >= 0 ? (1, 0, a) : (-1, 0, -a);
long c = SafeMod(a, b);
var (x2, y2, g) = ExtGcd(b, c);
long x = SafeMod(y2, b);
long y = (g - a * x) / b;
return (x, y, g);
}
[MethodImpl(256)]
static long SafeMod(long x, long m)
{
long r = x % m;
if (r < 0) r += m;
return r;
}
[MethodImpl(256)]
public override string ToString() => _v.ToString();
[MethodImpl(256)]
public string ToString(string format, IFormatProvider formatProvider) => _v.ToString(format, formatProvider);
[MethodImpl(256)]
public override bool Equals(object obj) => obj is StaticModInt<T> m && Equals(m);
[MethodImpl(256)]
public bool Equals(StaticModInt<T> other) => _v == other._v;
[MethodImpl(256)]
public override int GetHashCode() => _v.GetHashCode();
}
public class MyPriorityQueue<TKey, TValue> : IEnumerable<TValue>
{
public int Count { get; private set; } = 0;
private readonly List<KeyValuePair<TKey, TValue>> _data;
private readonly Func<TValue, TKey> _keySelector;
private readonly IComparer<TKey> _keyComparer;
public MyPriorityQueue(Func<TValue, TKey> keySelector) : this(keySelector, Comparer<TKey>.Default) { }
public MyPriorityQueue(Func<TValue, TKey> keySelector, IComparer<TKey> keyComparer)
{
_keySelector = keySelector;
_keyComparer = keyComparer;
_data = new List<KeyValuePair<TKey, TValue>>();
}
public void Clear()
{
Count = 0;
_data.Clear();
}
public void Enqueue(TValue item)
{
_data.Add(new KeyValuePair<TKey, TValue>(_keySelector(item), item));
var childIndex = Count;
Count++;
while (childIndex > 0)
{
var parentIndex = (childIndex - 1) / 2;
if (Compare(_data[childIndex].Key, _data[parentIndex].Key) >= 0)
break;
Swap(childIndex, parentIndex);
childIndex = parentIndex;
}
}
public TValue Dequeue()
{
Count--;
var lastIndex = Count;
var firstItem = _data[0];
_data[0] = _data[lastIndex];
_data.RemoveAt(lastIndex--);
var parentIndex = 0;
while (true)
{
var childIndex = parentIndex * 2 + 1;
if (childIndex > lastIndex)
break;
var rightChild = childIndex + 1;
if (rightChild <= lastIndex && Compare(_data[rightChild].Key, _data[childIndex].Key) < 0)
childIndex = rightChild;
if (Compare(_data[parentIndex].Key, _data[childIndex].Key) <= 0)
break;
Swap(parentIndex, childIndex);
parentIndex = childIndex;
}
return firstItem.Value;
}
public TValue Peek() { return _data[0].Value; }
private void Swap(int a, int b)
{
var tmp = _data[a];
_data[a] = _data[b];
_data[b] = tmp;
}
private int Compare(TKey a, TKey b) { return _keyComparer.Compare(b, a); }
public IEnumerator<TValue> GetEnumerator()
{
return _data.Select(r => r.Value).GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
}