結果

問題 No.87 Advent Calendar Problem
ユーザー EmKjpEmKjp
提出日時 2015-04-30 23:52:15
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 23 ms / 5,000 ms
コード長 3,399 bytes
コンパイル時間 1,591 ms
コンパイル使用メモリ 106,752 KB
実行使用メモリ 18,304 KB
最終ジャッジ日時 2024-07-05 17:16:29
合計ジャッジ時間 2,660 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
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 22 ms
18,176 KB
testcase_01 AC 22 ms
18,176 KB
testcase_02 AC 21 ms
18,176 KB
testcase_03 AC 21 ms
17,920 KB
testcase_04 AC 22 ms
18,176 KB
testcase_05 AC 23 ms
17,920 KB
testcase_06 AC 22 ms
18,048 KB
testcase_07 AC 22 ms
18,048 KB
testcase_08 AC 23 ms
18,176 KB
testcase_09 AC 22 ms
18,176 KB
testcase_10 AC 21 ms
18,048 KB
testcase_11 AC 21 ms
18,176 KB
testcase_12 AC 21 ms
18,176 KB
testcase_13 AC 21 ms
18,176 KB
testcase_14 AC 21 ms
17,920 KB
testcase_15 AC 22 ms
18,048 KB
testcase_16 AC 22 ms
18,304 KB
testcase_17 AC 22 ms
17,920 KB
testcase_18 AC 22 ms
18,176 KB
testcase_19 AC 22 ms
18,176 KB
testcase_20 AC 22 ms
18,048 KB
testcase_21 AC 22 ms
18,048 KB
testcase_22 AC 22 ms
17,920 KB
testcase_23 AC 22 ms
18,048 KB
testcase_24 AC 22 ms
18,176 KB
testcase_25 AC 21 ms
18,176 KB
testcase_26 AC 21 ms
18,048 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.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;

partial class Solver {
    public void Run() {
        var n = nl();
        var memo = new Dictionary<int, int>();
        long ans = 0;
        int cnt = 0;
        for (int year = 2015; year <= n; year++) {
            if (cnt == 400) break;
            if (new DateTime(year, 7, 23).DayOfWeek == DayOfWeek.Wednesday) {
                var key = year % 400;
                if (memo.ContainsKey(key)) {
                    cnt++;
                    int prev = memo[key];
                    if (prev == -1) continue;
                    long remain = n - year;
                    ans += remain / (year - prev) + 1;
                    memo[key] = -1;
                } else {
                    memo[key] = year;
                    ans++;
                }
            }
        }
        cout.WriteLine(ans);
    }
}

// PREWRITEN CODE BEGINS FROM HERE
partial class Solver : Scanner {
    public static void Main(string[] args) {
        new Solver(Console.In, Console.Out).Run();
    }

    TextReader cin;
    TextWriter cout;

    public Solver(TextReader reader, TextWriter writer)
        : base(reader) {
        this.cin = reader;
        this.cout = writer;
    }
    public Solver(string input, TextWriter writer)
        : this(new StringReader(input), writer) {
    }

    public int ni() { return NextInt(); }
    public int[] ni(int n) { return NextIntArray(n); }
    public long nl() { return NextLong(); }
    public long[] nl(int n) { return NextLongArray(n); }
    public string ns() { return Next(); }
}

public class Scanner {
    private TextReader Reader;
    private Queue<String> TokenQueue = new Queue<string>();
    private CultureInfo ci = CultureInfo.InvariantCulture;

    public Scanner()
        : this(Console.In) {
    }

    public Scanner(TextReader reader) {
        this.Reader = reader;
    }

    public int NextInt() { return Int32.Parse(Next(), ci); }
    public long NextLong() { return Int64.Parse(Next(), ci); }
    public double NextDouble() { return double.Parse(Next(), ci); }
    public string[] NextArray(int size) {
        var array = new string[size];
        for (int i = 0; i < size; i++) array[i] = Next();
        return array;
    }
    public int[] NextIntArray(int size) {
        var array = new int[size];
        for (int i = 0; i < size; i++) array[i] = NextInt();
        return array;
    }

    public long[] NextLongArray(int size) {
        var array = new long[size];
        for (int i = 0; i < size; i++) array[i] = NextLong();
        return array;
    }

    public String Next() {
        if (TokenQueue.Count == 0) {
            if (!StockTokens()) throw new InvalidOperationException();
        }
        return TokenQueue.Dequeue();
    }

    public bool HasNext() {
        if (TokenQueue.Count > 0)
            return true;
        return StockTokens();
    }

    private bool StockTokens() {
        while (true) {
            var line = Reader.ReadLine();
            if (line == null) return false;
            var tokens = line.Trim().Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            if (tokens.Length == 0) continue;
            foreach (var token in tokens)
                TokenQueue.Enqueue(token);
            return true;
        }
    }
}
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