結果

問題 No.924 紲星
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2019-11-08 22:40:08
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 2,660 ms / 4,000 ms
コード長 7,287 bytes
コンパイル時間 2,786 ms
コンパイル使用メモリ 116,772 KB
実行使用メモリ 92,064 KB
最終ジャッジ日時 2024-09-15 01:52:38
合計ジャッジ時間 23,380 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 AC 33 ms
19,968 KB
testcase_01 AC 33 ms
19,968 KB
testcase_02 AC 33 ms
20,096 KB
testcase_03 AC 37 ms
20,480 KB
testcase_04 AC 35 ms
19,840 KB
testcase_05 AC 38 ms
20,352 KB
testcase_06 AC 36 ms
20,352 KB
testcase_07 AC 36 ms
20,096 KB
testcase_08 AC 2,651 ms
92,064 KB
testcase_09 AC 2,651 ms
91,052 KB
testcase_10 AC 2,660 ms
91,444 KB
testcase_11 AC 2,634 ms
89,028 KB
testcase_12 AC 2,651 ms
91,444 KB
testcase_13 AC 1,013 ms
60,844 KB
testcase_14 AC 943 ms
60,024 KB
testcase_15 AC 871 ms
59,144 KB
testcase_16 AC 1,403 ms
57,856 KB
testcase_17 AC 1,518 ms
73,316 KB
testcase_18 AC 32 ms
19,712 KB
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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 # 

//author: camypaper
using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using Debug = System.Diagnostics.Debug;
using SB = System.Text.StringBuilder;
using System.Numerics;
using Point = System.Numerics.Complex;
using static System.Math;
using Number = System.Int64;
using System.Runtime.CompilerServices;

namespace Program {
    public class Solver {
        Random rnd = new Random(0);
        public void Solve() {
            var n = ri;
            var q = ri;
            var a = Enumerate(n, x => ri);
            var xs = a.Distinct().ToList(); xs.Sort();

            var K = xs.Count;
            var Q = Enumerate(q, x => new int[] { ri, ri });


            var fenwick = new FenwickTree(n);
            var L = Enumerate(q, x => 0);
            var R = Enumerate(q, x => K - 1);
            var X = Enumerate(q, x => 0);
            var ev = Enumerate(K, x => new List<int>());
            for (int i = 0; i < n; i++)
                ev[xs.BinarySearch(a[i])].Add(i);
            for (int T = 0; T < 20; T++) {
                for (int i = 0; i < q; i++) {
                    X[i] = (L[i] + R[i]) / 2;
                    ev[X[i]].Add(100000000 + i);
                }

                for (int i = 0; i < K; i++)
                    foreach (var e in ev[i]) {
                        if (e < n) fenwick.Add(e + 1, 1);
                        else {
                            var id = e - 100000000;
                            var cnt = fenwick[Q[id][0], Q[id][1]];
                            var len = Q[id][1] - Q[id][0] + 1;
                            if (cnt >= (len + 1) / 2) R[id] = X[id];
                            else L[id] = X[id];
                        }
                    }

                for (int i = 0; i < q; i++) {
                    ev[X[i]].RemoveAt(ev[X[i]].Count - 1);
                }
                for (int i = 0; i < K; i++)
                    foreach (var e in ev[i]) {
                        if (e < n) fenwick.Add(e + 1, -1);
                    }
            }
            Debug.WriteLine(R.AsJoinedString());
            var rem = new FenwickTree(n);
            var use = new FenwickTree(n);
            var ans = new long[q];
            for (int i = 0; i < n; i++)
                rem.Add(i + 1, a[i]);
            for (int i = 0; i < q; i++)
                ev[R[i]].Add(100000000 + i);
            for (int i = 0; i < K; i++) {
                foreach (var e in ev[i]) {
                    if (e < n) {
                        fenwick.Add(e + 1, 1);
                        use.Add(e + 1, a[e]);
                        rem.Add(e + 1, -a[e]);
                    }
                    else {
                        var id = e - 100000000;
                        var cnt = fenwick[Q[id][0], Q[id][1]];
                        ans[id] += cnt * xs[i] - use[Q[id][0], Q[id][1]];
                        var len = Q[id][1] - Q[id][0] + 1;
                        ans[id] += rem[Q[id][0], Q[id][1]] - (len - cnt) * xs[i];
                    }
                }
            }
            foreach (var x in ans)
                Console.WriteLine(x);




        }
        const long INF = 1L << 60;
        int ri => sc.Integer();
        long rl => sc.Long();
        double rd => sc.Double();
        string rs => sc.Scan();
        public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());

        static IEnumerable<int> Rep(int n) => Enumerable.Range(0, n);
        static IEnumerable<int> RRep(int n) => Enumerable.Range(0, n).Reverse();
        static T[] Enumerate<T>(int n, Func<int, T> f) {
            var a = new T[n];
            for (int i = 0; i < a.Length; ++i) a[i] = f(i);
            return a;
        }
        static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
    }
}

#region main
static class Ex {
    static public string AsString(this IEnumerable<char> ie) { return new string(ie.ToArray()); }
    static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") {
        return string.Join(st, ie);
    }
    static public void Main() {
        Console.SetOut(new Program.IO.Printer(Console.OpenStandardOutput()) { AutoFlush = false });
        var solver = new Program.Solver();
        solver.Solve();
        Console.Out.Flush();
    }
}
#endregion
#region Ex
namespace Program.IO {
    using System.IO;
    using System.Text;
    using System.Globalization;

    public class Printer : StreamWriter {
        public override IFormatProvider FormatProvider => CultureInfo.InvariantCulture;
        public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
    }

    public class StreamScanner {
        public StreamScanner(Stream stream) { str = stream; }

        public readonly Stream str;
        private readonly byte[] buf = new byte[1024];
        private int len, ptr;
        public bool isEof = false;

        private byte read() {
            if (isEof) return 0;
            if (ptr >= len) {
                ptr = 0;
                if ((len = str.Read(buf, 0, 1024)) <= 0) {
                    isEof = true;
                    return 0;
                }
            }
            return buf[ptr++];
        }

        public char Char() {
            byte b = 0;
            do b = read(); while ((b < 33 || 126 < b) && !isEof);
            return (char)b;
        }
        public string Scan() {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b);
            return sb.ToString();
        }
        public string ScanLine() {
            var sb = new StringBuilder();
            for (var b = Char(); b != '\n' && b != 0; b = (char)read()) if (b != '\r') sb.Append(b);
            return sb.ToString();
        }
        public long Long() { return isEof ? long.MinValue : long.Parse(Scan()); }
        public int Integer() { return isEof ? int.MinValue : int.Parse(Scan()); }
        public double Double() { return isEof ? double.NaN : double.Parse(Scan(), CultureInfo.InvariantCulture); }
    }
}

#endregion

#region FenwickTree
public class FenwickTree {
    int n;
    Number[] bit;
    int max = 1;
    public FenwickTree(int size) {
        n = size; bit = new Number[n + 1];
        while ((max << 1) <= n) max <<= 1;
    }
    /// <summary>sum[a,b]</summary>
    public Number this[int i, int j] { get { return this[j] - this[i - 1]; } }
    /// <summary>sum[0,i]</summary>
    public Number this[int i] { get { Number s = 0; for (; i > 0; i -= i & -i) s += bit[i]; return s; } }
    public int LowerBound(Number w) {
        if (w <= 0) return 0;
        int x = 0;
        for (int k = max; k > 0; k >>= 1)
            if (x + k <= n && bit[x + k] < w) {
                w -= bit[x + k];
                x += k;
            }
        return x + 1;
    }
    /// <summary>add v to bit[i]</summary>
    public void Add(int i, Number v) {
        Debug.Assert(i >= 1);
        for (; i <= n; i += i & -i) bit[i] += v;
    }
    public Number[] Items {
        get {
            var ret = new Number[n + 1];
            for (int i = 0; i < ret.Length; i++)
                ret[i] = this[i, i];
            return ret;
        }
    }
}
#endregion
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