結果

問題 No.259 セグメントフィッシング＋
ユーザー eitahoeitaho
提出日時 2016-07-26 15:44:40
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 1,140 ms / 2,000 ms
コード長 12,077 bytes
コンパイル時間 1,153 ms
コンパイル使用メモリ 120,060 KB
実行使用メモリ 75,092 KB
最終ジャッジ日時 2024-11-06 17:00:07
合計ジャッジ時間 20,258 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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 32 ms
27,044 KB
testcase_01 AC 32 ms
24,876 KB
testcase_02 AC 32 ms
26,916 KB
testcase_03 AC 31 ms
25,136 KB
testcase_04 AC 32 ms
24,860 KB
testcase_05 AC 30 ms
25,140 KB
testcase_06 AC 31 ms
27,304 KB
testcase_07 AC 30 ms
24,840 KB
testcase_08 AC 760 ms
72,908 KB
testcase_09 AC 752 ms
74,952 KB
testcase_10 AC 751 ms
74,820 KB
testcase_11 AC 767 ms
74,820 KB
testcase_12 AC 758 ms
75,092 KB
testcase_13 AC 1,135 ms
74,312 KB
testcase_14 AC 1,117 ms
72,136 KB
testcase_15 AC 1,115 ms
74,428 KB
testcase_16 AC 1,114 ms
74,560 KB
testcase_17 AC 1,111 ms
72,520 KB
testcase_18 AC 1,135 ms
72,516 KB
testcase_19 AC 1,123 ms
74,188 KB
testcase_20 AC 1,118 ms
72,264 KB
testcase_21 AC 1,138 ms
72,404 KB
testcase_22 AC 1,140 ms
74,312 KB
testcase_23 AC 386 ms
49,544 KB
testcase_24 AC 1,027 ms
74,824 KB
testcase_25 AC 1,038 ms
72,772 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.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Diagnostics;
using System.Numerics;
using Enu = System.Linq.Enumerable;

public class Program
{
    public void Solve()
    {
        int N = Reader.Int(), Q = Reader.Int();
        int last = 0;
        var L = new Treap();
        var R = new Treap();
        L.Build(new long[N]);
        R.Build(new long[N]);
        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });

        foreach (var q in Reader.StringTable(Q))
        {
            int t = int.Parse(q[1]), x = int.Parse(q[2]), y = int.Parse(q[3]);
            int diff = t - last;
            last = t;
            Treap.Node La, Lb, Ra, Rb;
            int mid = diff % N;
            Treap.Split(L.Root, mid, out La, out Lb);
            Treap.Split(R.Root, N - mid, out Ra, out Rb);
            if (diff / N % 2 == 0)
            {
                L.Root = Treap.Merge(Lb, Treap.Reverse(Rb));
                R.Root = Treap.Merge(Treap.Reverse(La), Ra);
            }
            else
            {
                L.Root = Treap.Merge(Treap.Reverse(Ra), La);
                R.Root = Treap.Merge(Rb, Treap.Reverse(Lb));
            }
            if (q[0] == "L")
                L[x] += y;
            else if (q[0] == "R")
                R[x] += y;
            else
                Console.WriteLine(L.Sum(x, y) + R.Sum(x, y));
        }
        Console.Out.Flush();
    }

    public class Treap
    {
        public Node Root;

        public class Node
        {
            static readonly Random random = new Random(0);
            public Node _L, _R;
            public int Count;
            public long Val;
            //public long RangeAdded;
            //public long Min;
            //public long Max;
            public long Sum;
            public bool Reversed;
            public readonly int Priority;

            public Node(long val)
            {
                Val = val; Count = 1; Priority = random.Next();
                //Min = val;
                //Max = val;
                Sum = val;
            }
            public Node L
            {
                get { if (Reversed) PushDown(); return _L; }
                set { if (Reversed)PushDown(); _L = value; }
            }
            public Node R
            {
                get { if (Reversed) PushDown(); return _R; }
                set { if (Reversed) PushDown(); _R = value; }
            }
            public void PushDown()
            {
                //if (!Reversed && RangeAdded == 0) return;
                if (_L != null)
                {
                    //_L.RangeAdded += RangeAdded;
                    //_L.Min += RangeAdded;
                    //_L.Max += RangeAdded;
                    //_L.Sum += RangeAdded * _L.Count;
                    _L.Reversed ^= Reversed;
                }
                if (_R != null)
                {
                    //_R.RangeAdded += RangeAdded;
                    //_R.Min += RangeAdded;
                    //_R.Max += RangeAdded;
                    //_R.Sum += RangeAdded * _R.Count;
                    _R.Reversed ^= Reversed;
                }
                //if (Reversed)
                //{
                var t = _L; _L = _R; _R = t;
                Reversed = false;
                //}
                //Val += RangeAdded;
                //RangeAdded = 0;
                Update(this);
            }
            public override string ToString()
            {
                return Val + (_L == null ? "" : " L:" + _L.Val) + (_R == null ? "" : " R:" + _R.Val);
            }
        }

        public void Build(long[] A, int L = 0, int R = -1)
        {
            Root = BuildRec(A, L, R == -1 ? A.Length : R);
        }
        Node BuildRec(long[] A, int L, int R)
        {
            if (R == -1) R = A.Length;
            if (R - L <= 0) return null;
            int mid = L + R >> 1;
            var node = new Node(A[mid]);
            node.L = BuildRec(A, L, mid);
            node.R = BuildRec(A, mid + 1, R);
            Update(node);
            return node;
        }

        public int Count { get { return Size(Root); } }
        static int Size(Node n) { return n == null ? 0 : n.Count; }

        static Node Update(Node n)
        {
            n.Count = 1 + (n._L == null ? 0 : n._L.Count) + (n._R == null ? 0 : n._R.Count);
            //n.Min = n.Val;
            //n.Max = n.Val;
            //if (n._L != null)
            //{
            //    n.Min = Math.Min(n.Min, n._L.Min);
            //    n.Max = Math.Max(n.Max, n._L.Max);
            //}
            //if (n._R != null)
            //{
            //    n.Min = Math.Min(n.Min, n._R.Min);
            //    n.Max = Math.Max(n.Max, n._R.Max);
            //}
            //n.Min += n.RangeAdded;
            //n.Max += n.RangeAdded;
            n.Sum = n.Val + /*n.RangeAdded * n.Count + */ (n._L == null ? 0 : n._L.Sum) + (n._R == null ? 0 : n._R.Sum);
            return n;
        }

        long RangeQuery(Node node, int L, int R, long init, Func<Node, long> nF, Func<long, long, long> F)
        {
            if (node == null || L >= R) return init;
            if (L == 0 && R == Size(node)) return nF(node);
            long res = init;
            int Lsize = Size(node.L);
            if (Lsize >= L && Lsize < R)
                res = node.Val;
            if (L < Lsize)
                res = F(res, RangeQuery(node.L, L, Math.Min(R, Lsize), init, nF, F));
            if (R - Lsize - 1 > 0)
                res = F(res, RangeQuery(node.R, Math.Max(0, L - Lsize - 1), R - Lsize - 1, init, nF, F));
            return res;
        }
        //public long Min(int L, int R) { return RangeQuery(Root, L, R, long.MaxValue, n => n.Min, Math.Min); }
        //public long Max(int L, int R) { return RangeQuery(Root, L, R, long.MinValue, n => n.Max, Math.Max); }
        public long Sum(int L, int R) { return RangeQuery(Root, L, R, 0, n => n.Sum, (a, b) => a + b); }

        //public void RangeAdd(int L, int R, long val) { RangeAdd(Root, L, R, val); }
        //void RangeAdd(Node node, int L, int R, long val)
        //{
        //    if (node == null || L >= R) return;
        //    if (L == 0 && R == node.Count)
        //    {
        //        node.RangeAdded += val;
        //        Update(node);
        //        return;
        //    }
        //    int Lsize = Size(node.L);
        //    if (Lsize >= L && Lsize < R) node.Val += val;
        //    if (L < Lsize) RangeAdd(node.L, L, Math.Min(R, Lsize), val);
        //    if (R - Lsize - 1 > 0) RangeAdd(node.R, Math.Max(0, L - Lsize - 1), R - Lsize - 1, val);
        //    Update(node);
        //}

        public long this[int index]
        {
            get
            {
                Debug.Assert(index >= 0 && index < Size(Root));
                var node = Root;
                while (index != Size(node.L))
                    if (index < Size(node.L)) node = node.L;
                    else { index -= Size(node.L) + 1; node = node.R; }
                return node.Val;
            }
            set
            {
                if (index < Size(Root)) RemoveAt(index);
                Insert(index, value);
            }
        }

        public static Node Merge(Node L, Node R)
        {
            if (L == null) return R;
            if (R == null) return L;
            if (L.Priority > R.Priority)
            {
                L.R = Merge(L.R, R);
                return Update(L);
            }
            R.L = Merge(L, R.L);
            return Update(R);
        }

        public static void Split(Node n, int index, out Node L, out Node R)
        {
            if (n == null) { L = R = null; return; }
            Node a, b;
            if (index <= Size(n.L))
            {
                Split(n.L, index, out a, out b);
                n.L = b;
                L = a;
                R = Update(n);
            }
            else
            {
                Split(n.R, index - Size(n.L) - 1, out a, out b);
                n.R = a;
                L = Update(n);
                R = b;
            }
        }
        public static void Split(Node n, int L, int R, out Node a, out Node b, out Node c)
        {
            Node t;
            Split(n, R, out t, out c);
            Split(t, L, out a, out b);
        }

        public void Insert(int index, long val) { Root = Insert(Root, new Node(val), index); }
        public Node Insert(Node node, Node newNode, int index)
        {
            if (node == null || index == Size(node.L) || newNode.Priority > node.Priority)
            {
                Node L, R;
                Split(node, index, out L, out R);
                node = Merge(L, newNode);
                node = Merge(node, R);
            }
            else
            {
                if (index < Size(node.L))
                    node.L = Insert(node.L, newNode, index);
                else
                    node.R = Insert(node.R, newNode, index - Size(node.L) - 1);
                Update(node);
            }
            return node;
        }

        public void RemoveAt(int index) { Root = RemoveAt(Root, index); }
        Node RemoveAt(Node node, int index)
        {
            if (node == null || index == Size(node.L))
            {
                Node L1, R1, L2, R2;
                Split(node, index, out L1, out R1);
                Split(R1, 1, out L2, out R2);
                node = Merge(L1, R2);
            }
            else
            {
                if (index < Size(node.L))
                    node.L = RemoveAt(node.L, index);
                else
                    node.R = RemoveAt(node.R, index - Size(node.L) - 1);
                Update(node);
            }
            return node;
        }

        public void Reverse(int L, int R) { Root = Reverse(Root, L, R); }
        public static Node Reverse(Node node, int L = 0, int R = -1)
        {
            if (node == null) return null;
            if (R == -1) R = Size(node);
            Node a, b, c;
            Split(node, L, R, out a, out b, out c);
            b.Reversed ^= true;
            return Merge(a, Merge(b, c));
        }
    }
}

class Entry { static void Main() { new Program().Solve(); } }
class Reader
{
    static TextReader reader = Console.In;
    static readonly char[] separator = { ' ' };
    static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries;
    static string[] A = new string[0];
    static int i;
    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 Range(N, Int); }
    public static int[][] IntTable(int H) { return Range(H, IntLine); }
    public static string[] StringArray(int N) { return Range(N, Next); }
    public static string[][] StringTable(int N) { return Range(N, () => Split(Line())); }
    public static string Line() { return reader.ReadLine().Trim(); }
    static string[] Split(string s) { return s.Split(separator, op); }
    static T[] Range<T>(int N, Func<T> f) { var r = new T[N]; for (int i = 0; i < N; r[i++] = f()) ; return r; }
    static string Next() { CheckNext(); return A[i++]; }
    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;
    }
}
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