結果

問題 No.609 Noelちゃんと星々
ユーザー くれちーくれちー
提出日時 2017-12-09 01:17:26
言語 C#(csc)
(csc 3.9.0)
結果
WA  
実行時間 -
コード長 15,323 bytes
コンパイル時間 3,004 ms
コンパイル使用メモリ 126,748 KB
実行使用メモリ 55,004 KB
最終ジャッジ日時 2024-05-07 07:17:18
合計ジャッジ時間 10,152 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge1
このコードへのチャレンジ
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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 WA -
testcase_01 WA -
testcase_02 WA -
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 WA -
testcase_24 WA -
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.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using static System.Math;
using static Extensions;
using static MathExtensions;

public static class Program
{
    public static void Solve()
    {
        var n = I;
        var y = Repeat(n, () => (BigRational)I).ToArray();
        var x = y.GroupBy(t => t).OrderByDescending(t => t.Count()).Head().Head();
        var a = y.Select(t => Abs(t - x)).Sum();
        Console.WriteLine(Round((double)a));
    }

    #region Scanners
    static Scanner _scanner;
    static char C => _scanner.NextChar();
    static string S => _scanner.NextString();
    static int I => _scanner.NextInt();
    static long L => _scanner.NextLong();
    static BigInteger B => _scanner.NextBigInteger();
    static double D => _scanner.NextDouble();
    static decimal M => _scanner.NextDecimal();
    #endregion

    public static void Main()
    {
        var sw = new StreamWriter(Console.OpenStandardOutput());
        sw.NewLine = "\n";
#if DEBUG
        sw.AutoFlush = true;
        //Console.SetError(sw);
#else
        sw.AutoFlush = false;
#endif
        Console.SetOut(sw);
        _scanner = new Scanner(Console.OpenStandardInput());
        Solve();
        Console.Out.Flush();
    }
}

public static partial class Extensions
{
    public static BigRational Abs(BigRational value)
        => value < 0 ? -value : value;

    public static BigRational Sum(this IEnumerable<BigRational> source)
        => source.Aggregate((x, y) => x + y);

    public static T Head<T>(this IEnumerable<T> source)
        => source.Take(1).Single();
}

#region Library
public class Scanner
{
    private readonly Stream _stream;
    private const int _bufferSize = 1024;
    private readonly byte[] _buf = new byte[_bufferSize];
    private int _len, _ptr;

    public Scanner(Stream stream)
    {
        _stream = stream;
    }

    public byte ReadByte()
    {
        if (_ptr >= _len)
        {
            _len = _stream.Read(_buf, 0, _bufferSize);
            _ptr = 0;
        }
        return _buf[_ptr++];
    }

    public char ReadChar() => (char)ReadByte();

    public string ReadLine()
    {
        var r = new StringBuilder();
        if (_ptr == 0) r.Append(ReadChar());
        for (; _ptr < _len; _ptr++) r.Append((char)_buf[_ptr]);
        return r.ToString();
    }

    public char NextChar() => char.Parse(NextString());

    public string NextString()
    {
        var r = new StringBuilder();
        var b = ReadChar();
        while (b != ' ' && b != '\n')
        {
            r.Append(b);
            b = ReadChar();
        }
        return r.ToString();
    }

    public int NextInt() => (int)NextLong();

    public long NextLong()
    {
        var r = 0L;
        var b = ReadByte();
        var n = b == '-';
        if (n) b = ReadByte();
        while (b != ' ' && b != '\n')
        {
            r = r * 10 + b - '0';
            b = ReadByte();
        }
        return n ? -r : r;
    }

    public BigInteger NextBigInteger()
    {
        var r = new BigInteger();
        var b = ReadByte();
        var n = b == '-';
        if (n) b = ReadByte();
        while (b != ' ' && b != '\n')
        {
            r = r * 10 + b - '0';
            b = ReadByte();
        }
        return n ? -r : r;
    }

    public double NextDouble()
    {
        var i = 0L;
        var b = ReadByte();
        var n = b == '-';
        if (n) b = ReadByte();
        while (b != '.' && b != ' ' && b != '\n')
        {
            i = i * 10 + b - '0';
            b = ReadByte();
        }
        if (b != '.') return n ? -i : i;
        b = ReadByte();
        var f = 0L;
        var p = 0;
        while (b != ' ' && b != '\n')
        {
            f = f * 10 + b - '0';
            b = ReadByte();
            p++;
        }
        var r = i + (double)f / MathExtensions.Pow(10, p);
        return n ? -r : r;
    }

    public decimal NextDecimal() => decimal.Parse(NextString());

    public T Next<T>(Converter<string, T> parser) => parser(NextString());
}

public class Monoid<T>
{
    public Monoid(T unit, Func<T, T, T> append)
    {
        this.Unit = unit;
        this.Append = append;
    }

    public T Unit { get; }

    public Func<T, T, T> Append { get; }
}

public static class Monoid
{
    public static Monoid<T> Create<T>(T unit, Func<T, T, T> append) => new Monoid<T>(unit, append);

    public static readonly Monoid<int> Min_Int32 = new Monoid<int>(int.MaxValue, Min);
    public static readonly Monoid<int> Max_Int32 = new Monoid<int>(int.MinValue, Max);

    public static readonly Monoid<long> Min_Int64 = new Monoid<long>(long.MaxValue, Min);
    public static readonly Monoid<long> Max_Int64 = new Monoid<long>(long.MinValue, Max);
}

public class Group<T> : Monoid<T>
{
    public Group(T unit, Func<T, T, T> append, Func<T, T> invert) : base(unit, append)
    {
        this.Invert = invert;
    }

    public Func<T, T> Invert { get; }
}

public static class Group
{
    public static Group<T> Create<T>(T unit, Func<T, T, T> append, Func<T, T> invert)
        => new Group<T>(unit, append, invert);

    public static readonly Group<int> Sum_Int32 = new Group<int>(0, (x, y) => x + y, x => -x);
    public static readonly Group<long> Sum_Int64 = new Group<long>(0L, (x, y) => x + y, x => -x);
}

public struct BigRational : IComparable<BigRational>, IEquatable<BigRational>
{
    public static readonly Group<BigRational> Sum
        = new Group<BigRational>(0, (x, y) => x + y, x => -x);

    public static readonly Group<BigRational> Product
        = new Group<BigRational>(0, (x, y) => x * y, x => x.Invert());

    public BigRational(BigInteger numer, BigInteger denom)
    {
        if (denom == 0) throw new ArgumentException();
        this.Numer = numer;
        this.Denom = denom;
        this.Reduce();
    }

    public BigRational(BigRational numer, BigRational denom)
    {
        this = numer / denom;
    }

    public BigInteger Numer { get; private set; }

    public BigInteger Denom { get; private set; }

    private void Reduce()
    {
        if (this.Numer == 0) { this.Denom = 1; return; }
        var gcd = Gcd(this.Numer, this.Denom);
        this.Numer /= gcd; this.Denom /= gcd;
        if (this.Denom < 0) { this.Numer *= -1; this.Denom *= -1; }
    }

    public BigRational Invert()
    {
        if (this.Numer == 0) throw new InvalidOperationException();
        return new BigRational(this.Denom, this.Numer);
    }

    public static BigRational operator -(BigRational value)
        => new BigRational(-value.Numer, value.Denom);

    public static BigRational operator +(BigRational left, BigRational right)
    {
        var d = Lcm(left.Denom, right.Denom);
        var n = left.Numer * (d / left.Denom) + right.Numer * (d / right.Denom);
        return new BigRational(n, d);
    }

    public static BigRational operator *(BigRational left, BigRational right)
    {
        var n = left.Numer * right.Numer;
        var d = left.Denom * right.Denom;
        return new BigRational(n, d);
    }

    public static BigRational operator -(BigRational left, BigRational right)
        => left + -right;

    public static BigRational operator /(BigRational left, BigRational right)
        => left * right.Invert();

    public static BigRational operator %(BigRational left, BigRational right)
        => left - (BigInteger)(left / right) * right;

    public static bool operator ==(BigRational left, BigRational right)
        => left.Equals(right);

    public static bool operator !=(BigRational left, BigRational right)
        => !left.Equals(right);

    public static bool operator <(BigRational left, BigRational right)
        => left.CompareTo(right) < 0;

    public static bool operator >(BigRational left, BigRational right)
        => left.CompareTo(right) > 0;

    public static bool operator <=(BigRational left, BigRational right)
        => left.CompareTo(right) <= 0;

    public static bool operator >=(BigRational left, BigRational right)
        => left.CompareTo(right) >= 0;

    public static implicit operator BigRational(int value)
        => new BigRational(value, 1);

    public static implicit operator BigRational(long value)
        => new BigRational(value, 1);

    public static implicit operator BigRational(BigInteger value)
        => new BigRational(value, 1);

    public static explicit operator BigInteger(BigRational value)
        => value.Numer / value.Denom;

    public static explicit operator double(BigRational value)
        => (double)value.Numer / (double)value.Denom;

    public int CompareTo(BigRational other)
        => (this - other).Numer.CompareTo(0);

    public bool Equals(BigRational other)
    {
        if (other.Numer == 0) return this.Numer == 0; // hotfix
        var r = this / other;
        return r.Numer == r.Denom;
    }

    public override bool Equals(object obj)
        => obj is BigRational other ? this.Equals(other) : false;

    public override int GetHashCode()
        => this.Numer.GetHashCode() ^ this.Denom.GetHashCode();

    public override string ToString()
        => $"{this.Numer}/{this.Denom}";
}

[DebuggerStepThrough]
public static partial class Extensions
{
    public static void Assert(bool condition)
    {
        if (!condition) throw new Exception("Assertion failed");
    }

    public static string AsString(this IEnumerable<char> source) => new string(source.ToArray());

    public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
    {
        foreach (var item in source) action(item);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, _> func)
    {
        foreach (var item in source) func(item);
    }

    public static void ForEach<T>(this IEnumerable<T> source, Action<T, int> action)
    {
        var i = 0;
        foreach (var item in source) action(item, i++);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, int, _> func)
    {
        var i = 0;
        foreach (var item in source) func(item, i++);
    }

    public static T Iterate<T>(int count, T seed, Func<T, T> func)
    {
        var r = seed;
        for (var i = 0; i < count; i++) r = func(r);
        return r;
    }

    public static void Repeat(int count, Action action)
    {
        for (var i = 0; i < count; i++) action();
    }

    public static void Repeat(int count, Action<int> action)
    {
        for (var i = 0; i < count; i++) action(i);
    }

    public static IEnumerable<T> Repeat<T>(Func<T> func)
    {
        for (var i = 0; ; i++) yield return func();
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<T> func)
    {
        for (var i = 0; i < count; i++) yield return func();
    }

    public static IEnumerable<T> Repeat<T>(Func<int, T> func)
    {
        for (var i = 0; ; i++) yield return func(i);
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<int, T> func)
    {
        for (var i = 0; i < count; i++) yield return func(i);
    }

    public static void Swap<T>(ref T x, ref T y)
    {
        var tmp = x; x = y; y = tmp;
    }

    public static (T1[], T2[]) Unzip<T1, T2>(this ICollection<(T1, T2)> source)
    {
        var ts1 = new T1[source.Count];
        var ts2 = new T2[source.Count];
        var i = 0;
        foreach (var (t1, t2) in source) { ts1[i] = t1; ts2[i] = t2; i++; }
        return (ts1, ts2);
    }

    public static (T1[], T2[], T3[]) Unzip<T1, T2, T3>(this ICollection<(T1, T2, T3)> source)
    {
        var ts1 = new T1[source.Count];
        var ts2 = new T2[source.Count];
        var ts3 = new T3[source.Count];
        var i = 0;
        foreach (var (t1, t2, t3) in source) { ts1[i] = t1; ts2[i] = t2; ts3[i] = t3; i++; }
        return (ts1, ts2, ts3);
    }

    public static (T1[], T2[], T3[], T4[]) Unzip<T1, T2, T3, T4>(this ICollection<(T1, T2, T3, T4)> source)
    {
        var ts1 = new T1[source.Count];
        var ts2 = new T2[source.Count];
        var ts3 = new T3[source.Count];
        var ts4 = new T4[source.Count];
        var i = 0;
        foreach (var (t1, t2, t3, t4) in source) { ts1[i] = t1; ts2[i] = t2; ts3[i] = t3; ts4[i] = t4; i++; }
        return (ts1, ts2, ts3, ts4);
    }

    public static IEnumerable<T> Zip<T1, T2, T3, T>(this IEnumerable<T1> first, IEnumerable<T2> second, IEnumerable<T3> thrid, Func<T1, T2, T3, T> resultSelector)
    {
        using (var e1 = first.GetEnumerator())
        using (var e2 = second.GetEnumerator())
        using (var e3 = thrid.GetEnumerator())
        {
            while (e1.MoveNext() && e2.MoveNext() && e3.MoveNext())
                yield return resultSelector(e1.Current, e2.Current, e3.Current);
        }
    }

    public static IEnumerable<T> Zip<T1, T2, T3, T4, T>(this IEnumerable<T1> first, IEnumerable<T2> second, IEnumerable<T3> thrid, IEnumerable<T4> fourth, Func<T1, T2, T3, T4, T> resultSelector)
    {
        using (var e1 = first.GetEnumerator())
        using (var e2 = second.GetEnumerator())
        using (var e3 = thrid.GetEnumerator())
        using (var e4 = fourth.GetEnumerator())
        {
            while (e1.MoveNext() && e2.MoveNext() && e3.MoveNext() && e4.MoveNext())
                yield return resultSelector(e1.Current, e2.Current, e3.Current, e4.Current);
        }
    }
}

[DebuggerStepThrough]
public static class MathExtensions
{
    public static int Gcd(int left, int right)
    {
        int r;
        while ((r = left % right) != 0) { left = right; right = r; }
        return right;
    }

    public static long Gcd(long left, long right)
    {
        long r;
        while ((r = left % right) != 0L) { left = right; right = r; }
        return right;
    }

    public static BigInteger Gcd(BigInteger left, BigInteger right)
        => BigInteger.GreatestCommonDivisor(left, right);

    public static int HighestOneBit(int x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        return x - (x >> 1);
    }

    public static long HighestOneBit(long x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        x |= x >> 32;
        return x - (x >> 1);
    }

    public static int Lcm(int left, int right) => left / Gcd(left, right) * right;

    public static long Lcm(long left, long right) => left / Gcd(left, right) * right;

    public static BigInteger Lcm(BigInteger left, BigInteger right)
        => left / Gcd(left, right) * right;

    public static int Pow(int value, int exponent)
    {
        var r = 1;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Pow(long value, int exponent)
    {
        var r = 1L;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Fact(int value)
    {
        var r = 1L;
        for (var i = 2; i <= value; i++) r *= i;
        return r;
    }
}
#endregion
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