結果
問題 | No.270 next_permutation (1) |
ユーザー |
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提出日時 | 2015-08-24 18:23:19 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 118 ms / 2,000 ms |
コード長 | 3,006 bytes |
コンパイル時間 | 1,309 ms |
コンパイル使用メモリ | 116,040 KB |
実行使用メモリ | 47,736 KB |
最終ジャッジ日時 | 2024-12-21 07:29:36 |
合計ジャッジ時間 | 3,094 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 15 |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;using System.IO;using System.Linq;using System.Text;using System.Collections.Generic;using System.Diagnostics;using System.Numerics;using Enu = System.Linq.Enumerable;class Program{public void Solve(){int N = Reader.Int(), K = Reader.Int();var A = Reader.IntArray(N);var B = Reader.IntArray(N);long ans = 0, diff = Diff(0, A, B);for (int t = 0; t < K; t++){ans += diff;diff += NextPermutation(A, B);}Console.WriteLine(ans);}long NextPermutation(int[] A, int[] B){int N = A.Length, L = 0, R = N - 1;for (L = N - 2; L >= 0; L--)if (A[L] < A[L + 1]){while (A[L] >= A[R]) R--;break;}long res = -Diff(Math.Max(0, L), A, B);if (L >= 0) Swap(ref A[L], ref A[R]);Array.Reverse(A, L + 1, N - L - 1);res += Diff(Math.Max(0, L), A, B);return res;}static void Swap<T>(ref T a, ref T b) { T t = a; a = b; b = t; }long Diff(int L, int[] A, int[] B){long res = 0;for (int i = L; i < A.Length; i++)res += Math.Abs(A[i] - B[i]);return res;}}class Entry { static void Main() { new Program().Solve(); } }class Reader{private static TextReader reader = Console.In;private static readonly char[] separator = { ' ' };private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries;private static string[] A = new string[0];private static int i;private static void Init() { A = new string[0]; }public static void Set(TextReader r) { reader = r; Init(); }public static void Set(string file) { reader = new StreamReader(file); Init(); }public static bool HasNext() { return CheckNext(); }public static string String() { return Next(); }public static int Int() { return int.Parse(Next()); }public static long Long() { return long.Parse(Next()); }public static double Double() { return double.Parse(Next()); }public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); }public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); }public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); }public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Next()).ToArray(); }public static string Line() { return reader.ReadLine().Trim(); }private static string[] Split(string s) { return s.Split(separator, op); }private static string Next() { CheckNext(); return A[i++]; }private static bool CheckNext(){if (i < A.Length) return true;string line = reader.ReadLine();if (line == null) return false;if (line == "") return CheckNext();A = Split(line);i = 0;return true;}}