結果

問題 No.837 Noelちゃんと星々2
ユーザー sekiya9311sekiya9311
提出日時 2019-06-14 22:32:51
言語 C#(csc)
(csc 3.9.0)
結果
WA  
実行時間 -
コード長 8,735 bytes
コンパイル時間 3,432 ms
コンパイル使用メモリ 119,608 KB
実行使用メモリ 50,176 KB
最終ジャッジ日時 2024-04-26 17:26:44
合計ジャッジ時間 4,725 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge3
このコードへのチャレンジ
（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 133 ms
46,348 KB
testcase_01 AC 135 ms
46,340 KB
testcase_02 AC 131 ms
45,952 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 AC 132 ms
48,256 KB
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 AC 38 ms
26,744 KB
testcase_11 WA -
testcase_12 WA -
testcase_13 AC 41 ms
26,472 KB
testcase_14 WA -
testcase_15 AC 40 ms
26,412 KB
testcase_16 AC 38 ms
24,628 KB
testcase_17 WA -
testcase_18 AC 38 ms
26,988 KB
testcase_19 AC 40 ms
26,600 KB
testcase_20 AC 40 ms
26,728 KB
testcase_21 AC 41 ms
28,768 KB
testcase_22 WA -
testcase_23 AC 40 ms
26,592 KB
testcase_24 AC 39 ms
26,600 KB
testcase_25 AC 40 ms
26,596 KB
testcase_26 AC 39 ms
28,656 KB
testcase_27 AC 38 ms
24,760 KB
testcase_28 AC 39 ms
26,728 KB
testcase_29 AC 40 ms
24,632 KB
testcase_30 AC 40 ms
28,500 KB
testcase_31 AC 38 ms
26,724 KB
testcase_32 AC 39 ms
26,720 KB
権限があれば一括ダウンロードができます
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

diff # 

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Numerics;

namespace ProgrammingContest
{
    class Writer : IDisposable
    {
        private System.IO.TextWriter Out { get; }
        private StringBuilder Sb { get; }
        private bool IsReactive { get; }
        public Writer(string path)
            : this(new System.IO.StreamWriter(path))
        {
        }
        public Writer(bool isReactive)
            : this(null, isReactive)
        {
        }
        public Writer(System.IO.TextWriter writer = null, bool isReactive = false)
        {
            this.Out = (writer ?? Console.Out);
            this.IsReactive = isReactive;
            if (!this.IsReactive)
            {
                this.Sb = new StringBuilder();
            }
        }
        public void Dispose()
        {
            if (!this.IsReactive)
            {
                this.Out.Write(Sb.ToString());
            }
            if (!this.Out.Equals(Console.Out))
            {
                this.Out.Dispose();
            }
        }
        public void Write(object val)
        {
            if (this.IsReactive)
            {
                this.Out.Write(val.ToString());
                this.Out.Flush();
            }
            else
            {
                this.Sb.Append(val.ToString());
            }
        }
        public void WriteFormat(string format, params object[] vals)
        {
            if (this.IsReactive)
            {
                this.Out.Write(format, vals);
                this.Out.Flush();
            }
            else
            {
                this.Sb.AppendFormat(format, vals);
            }
        }

        public void WriteLine(object val = null)
            => this.WriteFormat((val?.ToString() ?? string.Empty) + Environment.NewLine);

        public void WriteLine(int val)
            => this.WriteLine(val.ToString());

        public void WriteLine(long val)
            => this.WriteLine(val.ToString());

        public void WriteLine(string val)
            => this.WriteLine((object)val);

        public void WriteLine(string format, params object[] vals)
            => this.WriteFormat(format + Environment.NewLine, vals);
    }

    class Scanner : IDisposable
    {
        private Queue<string> Buffer { get; }
        private char[] Sep { get; }
        private System.IO.TextReader Reader { get; }
        public Scanner(string path, char[] sep = null)
            : this(new System.IO.StreamReader(path), sep)
        {
        }
        public Scanner(System.IO.TextReader reader = null,
                        char[] sep = null)
        {
            this.Buffer = new Queue<string>();
            this.Sep = (sep ?? new char[] { ' ' });
            this.Reader = (reader ?? Console.In);
        }
        private void CheckBuffer()
        {
            if (this.Buffer.Count == 0 && this.Reader.Peek() != -1)
            {
                string str = string.Empty;
                for (; string.IsNullOrEmpty(str) || string.IsNullOrWhiteSpace(str);
                str = this.Reader.ReadLine()) ;

                var strs = str.Split(this.Sep)
                    .Where(el => !(string.IsNullOrEmpty(el) || string.IsNullOrWhiteSpace(el)));
                foreach (var el in strs)
                {
                    this.Buffer.Enqueue(el);
                }
            }
        }

        public void Dispose()
        {
            if (!this.Reader.Equals(Console.In))
            {
                this.Reader.Dispose();
            }
        }

        public string Next()
        {
            this.CheckBuffer();
            return this.Buffer.Dequeue();
        }

        public string[] GetStringArray(int N)
            => Enumerable.Range(0, N)
                         .Select(e => this.Next())
                         .ToArray();

        public int NextInt()
            => int.Parse(this.Next());

        public int[] GetIntArray(int N)
            => Enumerable.Range(0, N)
                         .Select(e => this.NextInt())
                         .ToArray();

        public double NextDouble()
            => double.Parse(this.Next());

        public double[] GetdoubleArray(int N)
            => Enumerable.Range(0, N)
                         .Select(e => this.NextDouble())
                         .ToArray();

        public long NextLong()
            => long.Parse(this.Next());

        public long[] GetLongArray(int N)
            => Enumerable.Range(0, N)
                         .Select(e => this.NextLong())
                         .ToArray();

        public BigInteger NextBigInt()
            => BigInteger.Parse(this.Next());

        public BigInteger[] GetBigIntArray(int N)
            => Enumerable.Range(0, N)
                         .Select(e => this.NextBigInt())
                         .ToArray();

        public bool IsEnd
        {
            get
            {
                this.CheckBuffer();
                return this.Buffer.Count == 0;
            }
        }
    }

    class MainClass : IDisposable
    {
        private Scanner Sc { get; }
        private Writer Wr { get; }
        private string InFilePath => "in.txt";
        private string OutFilePath => "out.txt";
        public MainClass()
        {
            this.Wr = new Writer(this.IsReactive);
            //this.Wr = new Writer(this.OutFilePath);
#if DEBUG
            if (!this.IsReactive)
            {
                this.Sc = new Scanner(this.InFilePath);
            }
            else
            {
                this.Sc = new Scanner();
            }
#else
            this.Sc = new Scanner();
#endif
            this.Solve();
        }
        static void Main(string[] args)
        {
            using (new MainClass()) { }
        }

        public void Dispose()
        {
            this.Sc?.Dispose();
            this.Wr?.Dispose();
#if DEBUG
            Console.WriteLine("press any key to continue...");
            Console.ReadKey();
#endif
        }

        void Solve()
        {
            int N = Sc.NextInt();
            var Y = Sc.GetLongArray(N);

            Array.Sort(Y);
            var dCnt = new HashSet<long>(Y).Count;
            if (dCnt == 1)
            {
                Wr.WriteLine(1);
                return;
            }
            else if (dCnt == 2)
            {
                Wr.WriteLine(0);
                return;
            }

            long[] acc = new long[N + 1];
            for (int i = 0; i < N; i++)
            {
                acc[i + 1] = acc[i] + Y[i];
            }
            Func<int, int, long> CalcSum = (l, r) => acc[r] - acc[l];

            long ans = (long)1e18;
            for (int i = 1; i < N - 1; i++)
            {
                // [l_l, l_r), [r_l, r_r)
                int l_l = 0;
                int l_r = i;
                int r_l = i;
                int r_r = N;

                long left = (long)1e18;
                {
                    var key = (l_r - l_l) / 2;
                    if ((l_r - l_l) % 2 == 0)
                    {
                        left = Math.Abs(CalcSum(l_l, key) - Y[key] * (key - l_l)) + Math.Abs(CalcSum(key, l_r) - Y[key] * (l_r - key));
                        key++;
                        left = Math.Min(left, Math.Abs(CalcSum(l_l, key) - Y[key] * (key - l_l)) + Math.Abs(CalcSum(key, l_r) - Y[key] * (l_r - key)));
                    }
                    else
                    {
                        left = Math.Abs(CalcSum(l_l, key) - Y[key] * (key - l_l)) + Math.Abs(CalcSum(key, l_r) - Y[key] * (l_r - key));
                    }
                }

                long right = (long)1e18;
                {
                    var key = (r_r - r_l) / 2 + r_l - 1;
                    if ((r_r - r_l) % 2 == 0)
                    {
                        right = Math.Abs(CalcSum(r_l, key) - Y[key] * (key - r_l)) + Math.Abs(CalcSum(key, r_r) - Y[key] * (r_r - key));
                        key++;
                        right = Math.Min(right, Math.Abs(CalcSum(r_l, key) - Y[key] * (key - r_l)) + Math.Abs(CalcSum(key, r_r) - Y[key] * (r_r - key)));
                    }
                    else
                    {
                        right = Math.Abs(CalcSum(r_l, key) - Y[key] * (key - r_l)) + Math.Abs(CalcSum(key, r_r) - Y[key] * (r_r - key));
                    }
                }

                //Wr.WriteLine($"{Y[(l_r - l_l)/2]}, {Y[(r_r - r_l) / 2 + r_l - 1]}");
                ans = Math.Min(ans, left + right);
            }

            Wr.WriteLine(ans);

        }

        private bool IsReactive => false; // TODO: reactive check !!
    }
}
0