結果

問題 No.87 Advent Calendar Problem
ユーザー EmKjp
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
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 24
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.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;
}
}
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0