結果
| 問題 | No.5020 Averaging |
| ユーザー |
 yupiteru_kun
|
| 提出日時 | 2024-02-25 15:29:15 |
| 言語 | C# (.NET 8.0.404) |
| 結果 |
AC
|
| 実行時間 | 967 ms / 1,000 ms |
| コード長 | 14,383 bytes |
| コンパイル時間 | 8,921 ms |
| コンパイル使用メモリ | 158,500 KB |
| 実行使用メモリ | 213,648 KB |
| スコア | 29,110,915 |
| 最終ジャッジ日時 | 2024-02-25 15:30:22 |
| 合計ジャッジ時間 | 60,252 ms |
|
ジャッジサーバーID （参考情報） |
judge13 / judge15 |
| 純コード判定しない問題か言語 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 50 |
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 (95 ms)。 MSBuild のバージョン 17.7.3+8ec440e68 (.NET) main -> /home/judge/data/code/bin/Release/net7.0/main.dll main -> /home/judge/data/code/bin/Release/net7.0/publish/
ソースコード
using System;using System.Collections.Generic;using System.IO;using System.Linq;using static System.Math;using System.Text;using System.Threading;using System.Globalization;using System.Runtime.CompilerServices;using System.Runtime.InteropServices;using Library;namespace Program{public static class ProblemA{static bool SAIKI = false;static public int numberOfRandomCases = 0;static public void MakeTestCase(List<string> _input, List<string> _output, ref Func<string[], bool> _outputChecker){}static public void Solve(){var N = (int)NN;var startTime = DateTime.Now;var AB = Range(0, N).Select(_ => new { idx = _, A = NN, B = NN }).ToArray();const long TGT = 500000000000000000;var operateList = new List<(int a, int b)>();var randomIdxList = Range(0, N).OrderByRand().ToArray();var randomIdxNextPickIdx = 0;Func<int> randomPick = () =>{var ret = randomIdxList[randomIdxNextPickIdx];if (++randomIdxNextPickIdx == N) randomIdxNextPickIdx = 0;return ret;};for (var i = 0; i < 40; ++i){var a = randomPick();var b = randomPick();if (a == b) b = randomPick();operateList.Add((a, b));}Func<(double score, (int a, int b)[] added)> calcScoreFull = () =>{var tmp = new (long a, long b)[N];for (var i = 0; i < N; ++i){tmp[i].a = AB[i].A;tmp[i].b = AB[i].B;}foreach (var item in operateList){var newa = (tmp[item.a].a + tmp[item.b].a) / 2;var newb = (tmp[item.a].b + tmp[item.b].b) / 2;tmp[item.a].a = tmp[item.b].a = newa;tmp[item.a].b = tmp[item.b].b = newb;}var lastOpe = 50 - operateList.Count;var addOpe = new List<(int a, int b)>();var nowScore = Log10(Max(Abs(TGT - tmp[0].a), Abs(TGT - tmp[0].b)) + 1);for (var i = 0; i < lastOpe; ++i){var minScore = nowScore;var minIdx = -1;for (var j = 1; j < N; ++j){var newa = (tmp[0].a + tmp[j].a) / 2;var newb = (tmp[0].b + tmp[j].b) / 2;var thisScore = Log10(Max(Abs(TGT - newa), Abs(TGT - newb)) + 1);if (minScore > thisScore){minScore = thisScore;minIdx = j;}}if (minIdx == -1) break;addOpe.Add((0, minIdx));tmp[0].a = tmp[minIdx].a = (tmp[0].a + tmp[minIdx].a) / 2;tmp[0].b = tmp[minIdx].b = (tmp[0].b + tmp[minIdx].b) / 2;nowScore = minScore;}return (nowScore, addOpe.ToArray());};var score = calcScoreFull().score;var TIME_LIMIT = 900;var startTemp = 1.0;var endTemp = 0.0;var loopCnt = 0;while (true){++loopCnt;//if (loopCnt % 1000 == 0){//Console.Error.WriteLine($"score:{score}");}var elapsed = (DateTime.Now - startTime).TotalMilliseconds;if (elapsed > TIME_LIMIT) break;var temp = startTemp + (endTemp - startTemp) * elapsed / TIME_LIMIT;var kakuritu = xorshift % 100;if (kakuritu < 20){// addif (operateList.Count == 50) continue;var a = randomPick();var b = randomPick();if (a == b) b = randomPick();var pos = (int)(xorshift % (operateList.Count + 1));operateList.Insert(pos, (a, b));var newScore = calcScoreFull().score;var diff = newScore - score;var prob = Exp(-diff / temp);if (prob * 10000000 > xorshift % 10000000){score = newScore;}else{operateList.RemoveAt(pos);}}else if (kakuritu < 40){// removeif (operateList.Count == 0) continue;var pos = (int)(xorshift % operateList.Count);var removed = operateList[pos];operateList.RemoveAt(pos);var newScore = calcScoreFull().score;var diff = newScore - score;var prob = Exp(-diff / temp);if (prob * 10000000 > xorshift % 10000000){score = newScore;}else{operateList.Insert(pos, removed);}}else if (kakuritu < 40){// swapif (operateList.Count < 2) continue;var pos1 = (int)(xorshift % operateList.Count);var pos2 = (int)(xorshift % (operateList.Count - 1));if (pos1 == pos2) ++pos2;var old1 = operateList[pos1];var old2 = operateList[pos2];operateList[pos1] = old2;operateList[pos2] = old1;var newScore = calcScoreFull().score;var diff = newScore - score;var prob = Exp(-diff / temp);if (prob * 10000000 > xorshift % 10000000){score = newScore;}else{operateList[pos1] = old1;operateList[pos2] = old2;}}else{// changeif (operateList.Count == 0) continue;var a = randomPick();var b = randomPick();if (a == b) b = randomPick();var pos = (int)(xorshift % operateList.Count);var old = operateList[pos];operateList[pos] = (a, b);var newScore = calcScoreFull().score;var diff = newScore - score;var prob = Exp(-diff / temp);if (prob * 10000000 > xorshift % 10000000){score = newScore;}else{operateList[pos] = old;}}}operateList.AddRange(calcScoreFull().added);Console.WriteLine(operateList.Count);foreach (var item in operateList){Console.WriteLine($"{item.a + 1} {item.b + 1}");}}class Printer : StreamWriter{public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { base.AutoFlush = false; }public Printer(Stream stream, Encoding encoding) : base(stream, encoding) { base.AutoFlush = false; }}static LIB_FastIO fastio = new LIB_FastIODebug();static string[] args;static public void Main(string[] args_t) { args = args_t; if (args_t.Length == 0) { fastio = new LIB_FastIO(); Console.SetOut(new Printer(Console.OpenStandardOutput())); } if (SAIKI) { var t = new Thread(Solve, 134217728); t.Start(); t.Join(); } else Solve(); Console.Out.Flush(); }static long NN => fastio.Long();static double ND => fastio.Double();static string NS => fastio.Scan();static long[] NNList(long N) => Repeat(0, N).Select(_ => NN).ToArray();static double[] NDList(long N) => Repeat(0, N).Select(_ => ND).ToArray();static string[] NSList(long N) => Repeat(0, N).Select(_ => NS).ToArray();static long Count<T>(this IEnumerable<T> x, Func<T, bool> pred) => Enumerable.Count(x, pred);static IEnumerable<T> Repeat<T>(T v, long n) => Enumerable.Repeat<T>(v, (int)n);static IEnumerable<int> Range(long s, long c) => Enumerable.Range((int)s, (int)c);static IOrderedEnumerable<T> OrderByRand<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x, _ => xorshift);static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x.OrderByRand(), e => e);static IOrderedEnumerable<T1> OrderBy<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderBy(x.OrderByRand(), selector);static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x) => Enumerable.OrderByDescending(x.OrderByRand(), e => e);static IOrderedEnumerable<T1> OrderByDescending<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderByDescending(x.OrderByRand(), selector);static IOrderedEnumerable<string> OrderBy(this IEnumerable<string> x) => x.OrderByRand().OrderBy(e => e, StringComparer.OrdinalIgnoreCase);static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderBy(selector, StringComparer.OrdinalIgnoreCase);static IOrderedEnumerable<string> OrderByDescending(this IEnumerable<string> x) => x.OrderByRand().OrderByDescending(e => e, StringComparer.OrdinalIgnoreCase);static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderByDescending(selector, StringComparer.OrdinalIgnoreCase);static string Join<T>(this IEnumerable<T> x, string separator = "") => string.Join(separator, x);static uint xorshift { get { _xsi.MoveNext(); return _xsi.Current; } }static IEnumerator<uint> _xsi = _xsc();static IEnumerator<uint> _xsc() { uint x = 123456789, y = 362436069, z = 521288629, w = (uint)(DateTime.Now.Ticks & 0xffffffff); while (true){ var t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); yield return w; } }static bool Chmax<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) < 0) { lhs = rhs; return true; } returnfalse; }static bool Chmin<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) > 0) { lhs = rhs; return true; } returnfalse; }static void Fill<T>(this T[] array, T value) => array.AsSpan().Fill(value);static void Fill<T>(this T[,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0], array.Length).Fill(value);static void Fill<T>(this T[,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0], array.Length).Fill(value);static void Fill<T>(this T[,,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0, 0], array.Length).Fill(value);}}namespace Library {class LIB_FastIO{[MethodImpl(MethodImplOptions.AggressiveInlining)]public LIB_FastIO() { str = Console.OpenStandardInput(); }readonly Stream str;readonly byte[] buf = new byte[2048];int len, ptr;[MethodImpl(MethodImplOptions.AggressiveInlining)]byte read(){if (ptr >= len){ptr = 0;if ((len = str.Read(buf, 0, 2048)) <= 0){return 0;}}return buf[ptr++];}[MethodImpl(MethodImplOptions.AggressiveInlining)]char Char(){byte b = 0;do b = read();while (b < 33 || 126 < b);return (char)b;}[MethodImpl(MethodImplOptions.AggressiveInlining)]virtual 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(MethodImplOptions.AggressiveInlining)]virtual public long Long(){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 << 3) + (ret << 1) + b - '0';}}[MethodImpl(MethodImplOptions.AggressiveInlining)]virtual public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }}class LIB_FastIODebug : LIB_FastIO{Queue<string> param = new Queue<string>();[MethodImpl(MethodImplOptions.AggressiveInlining)]string NextString() { if (param.Count == 0) foreach (var item in Console.ReadLine().Split(' ')) param.Enqueue(item); return param.Dequeue();}[MethodImpl(MethodImplOptions.AggressiveInlining)]public LIB_FastIODebug() { }[MethodImpl(MethodImplOptions.AggressiveInlining)]public override string Scan() => NextString();[MethodImpl(MethodImplOptions.AggressiveInlining)]public override long Long() => long.Parse(NextString());[MethodImpl(MethodImplOptions.AggressiveInlining)]public override double Double() => double.Parse(NextString());}}