結果

問題 No.318 学学学学学
ユーザー eitaho
提出日時 2016-01-08 01:34:52
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 250 ms / 2,000 ms
コード長 4,319 bytes
コンパイル時間 2,864 ms
コンパイル使用メモリ 116,332 KB
実行使用メモリ 54,080 KB
最終ジャッジ日時 2024-06-22 16:16:49
合計ジャッジ時間 7,664 ms
ジャッジサーバーID
(参考情報)
judge4 / judge1
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 26
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 #
プレゼンテーションモードにする

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();
var A = Reader.IntArray(N);
var L = new Dictionary<int, int>();
var R = new Dictionary<int, int>();
for (int i = 0; i < N; i++) R[A[i]] = i;
for (int i = N - 1; i >= 0; i--) L[A[i]] = i;
var seg = new RangeUpdateSumSegTree(N);
foreach (int val in A.Distinct().OrderBy(a => a))
seg.Update(L[val], R[val] + 1, val);
var ans = Enu.Range(0, N).Select(i => seg.Sum(i, i + 1));
Console.WriteLine(string.Join(" ", ans));
}
class RangeUpdateSumSegTree
{
public readonly int N;
private readonly int[] V, S;
private readonly bool[] Flag;
public RangeUpdateSumSegTree(int n)
{
for (N = 4; N < n; ) N *= 2;
V = new int[N * 2];
S = new int[N * 2];
Flag = new bool[N * 2];
}
public int Sum(int L, int R) { return Sum(0, 0, N, L, R); }
private int Sum(int i, int currL, int currR, int L, int R)
{
if (currL >= R || currR <= L) return 0;
if (currL >= L && currR <= R) return S[i];
if (Flag[i]) return V[i] * (Math.Min(currR, R) - Math.Max(currL, L));
int mid = (currL + currR) / 2;
int valL = Sum(i * 2 + 1, currL, mid, L, R);
int valR = Sum(i * 2 + 2, mid, currR, L, R);
return valL + valR;
}
public void Update(int L, int R, int val) { Update(0, val, 0, N, L, R); }
private void Update(int i, int val, int currL, int currR, int L, int R)
{
if (currL >= R || currR <= L) return;
if (currL >= L && currR <= R)
{
Flag[i] = true;
V[i] = val;
S[i] = val * (currR - currL);
return;
}
if (Flag[i] && currR - currL > 1)
{
V[i * 2 + 1] = V[i * 2 + 2] = V[i];
S[i * 2 + 1] = S[i * 2 + 2] = (currR - currL) / 2 * V[i];
Flag[i * 2 + 1] = Flag[i * 2 + 2] = true;
Flag[i] = false;
}
int mid = (currL + currR) / 2;
Update(i * 2 + 1, val, currL, mid, L, R);
Update(i * 2 + 2, val, mid, currR, L, R);
S[i] = S[i * 2 + 1] + S[i * 2 + 2];
}
}
}
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;
}
}
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