#69650 (C#(csc)) No.316 もっと刺激的なFizzBuzzをください

• 問題: No.316 もっと刺激的なFizzBuzzをください
• ユーザー: NetSeed
• 提出日時: 2015-12-31 21:37:17
• 言語: C#(csc) (csc 3.9.0)
• 結果: WA
• 実行時間: -
• コード長: 2,115 bytes
• コンパイル時間: 1,389 ms
• コンパイル使用メモリ: 112,256 KB
• 実行使用メモリ: 20,736 KB
• 最終ジャッジ日時: 2024-09-19 09:00:33
• 合計ジャッジ時間: 3,985 ms
• ジャッジサーバーID （参考情報）: judge2 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	WA	-
testcase_01	WA	-
testcase_02	RE	-
testcase_03	AC	45 ms; 19,328 KB
testcase_04	AC	43 ms; 19,456 KB
testcase_05	WA	-
testcase_06	AC	44 ms; 19,456 KB
testcase_07	AC	43 ms; 19,584 KB
testcase_08	AC	42 ms; 19,584 KB
testcase_09	AC	42 ms; 19,584 KB
testcase_10	AC	42 ms; 19,456 KB
testcase_11	AC	43 ms; 19,584 KB
testcase_12	WA	-
testcase_13	AC	44 ms; 19,968 KB
testcase_14	AC	43 ms; 19,968 KB
testcase_15	AC	45 ms; 20,736 KB
testcase_16	AC	45 ms; 20,096 KB
testcase_17	AC	43 ms; 19,712 KB
testcase_18	WA	-
testcase_19	WA	-
testcase_20	AC	44 ms; 19,456 KB
testcase_21	WA	-
testcase_22	WA	-
testcase_23	AC	42 ms; 19,840 KB
testcase_24	AC	44 ms; 19,712 KB
testcase_25	WA	-
testcase_26	AC	42 ms; 19,584 KB
testcase_27	AC	42 ms; 19,456 KB
testcase_28	WA	-
testcase_29	WA	-
testcase_30	AC	43 ms; 19,328 KB
testcase_31	AC	46 ms; 20,352 KB
testcase_32	WA	-
testcase_33	WA	-
testcase_34	WA	-
testcase_35	WA	-
testcase_36	AC	44 ms; 20,096 KB

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

using System;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApplication3
{
	static class Extensions
	{
		public static IEnumerable<T> Do<T>(this IEnumerable<T> source, Action<T> process)
		{
			foreach (var elem in source)
			{
				process(elem);
				yield return elem;
			}
		}

		public static IEnumerable<T> Repeat<T>(this IEnumerable<T> source, Func<T,bool> condition,
			Action<T> sideEffect)
		{
			foreach (var elem in source)
			{
				while (condition(elem))
				{
					sideEffect(elem);
					yield return elem;
				}
			}
		}
	}

	class Program
	{
		private static readonly List<int> PrimeNumbers = new List<int> {2, 3};

		public static IEnumerable<int> GetPrimeSequence()
			=> PrimeNumbers.Concat(Enumerable.Range((PrimeNumbers.Max() - 1)/2 + 1, 1000000000)
				.Select(x => x*2 + 1)
				.Where(x => PrimeNumbers.TakeWhile(p => Math.Sqrt(x) >= p).All(p => x%p != 0))
				.Do(x => PrimeNumbers.Add(x)));

		public static IEnumerable<int> Factorization(int value)
		{
			var tmp = value;
			return GetPrimeSequence().TakeWhile(_ => tmp != 1).Repeat(x => tmp%x == 0, x => tmp/=x);
		}

		public static int LeastCommonMultiple(int lParam, int rParam)
		{
			var lFact = Factorization(lParam).ToLookup(x => x).Select(x => new {prime = x.Key, value = x.Key*x.Count()});
			var rFact = Factorization(rParam).ToLookup(x => x).Select(x => new {prime = x.Key, value = x.Key*x.Count()});


			var ret = lFact.Concat(rFact).ToLookup(x => x.prime,x=>x.value);
			var hoge = ret.Select(x => x.Max());

			return hoge.Aggregate(1, (accum, i) => accum *= i);
		}

		static void Main(string[] args)
		{
			var n = int.Parse(Console.ReadLine());
			var input = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToArray();

			var ab = LeastCommonMultiple(input[0], input[1]);
			var bc = LeastCommonMultiple(input[1], input[2]);
			var ca = LeastCommonMultiple(input[2], input[0]);

			var med = LeastCommonMultiple(ab, input[2]);

			var accum = input.Select(x => n/x).Sum();
			accum -= n/ab;
			accum -= n/bc;
			accum -= n/ca;
			accum += n/med;

			Console.WriteLine(accum);

		}
	}
}