#1016611 (C#(csc)) No.167 N^M mod 10

• 問題: No.167 N^M mod 10
• ユーザー: aketijyuuzou
• 提出日時: 2024-10-10 23:24:07
• 言語: C#(csc) (csc 3.9.0)
• 結果: AC
• 実行時間: 25 ms / 1,000 ms
• コード長: 2,347 bytes
• コンパイル時間: 866 ms
• コンパイル使用メモリ: 111,484 KB
• 実行使用メモリ: 25,820 KB
• 最終ジャッジ日時: 2024-10-10 23:24:10
• 合計ジャッジ時間: 2,499 ms
• ジャッジサーバーID （参考情報）: judge4 / judge1

ファイルパターン	結果
sample	AC * 2
other	AC * 27

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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
using System;
using System.Collections.Generic;
class Program
{
    static string InputPattern = "InputX";
    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();
        if (InputPattern == "Input1") {
            WillReturn.Add("22");
            WillReturn.Add("22");
            //4
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("56");
            WillReturn.Add("65");
            //6
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }
    static void Main()
    {
        List<string> InputList = GetInputList();
        string StrN = InputList[0];
        int IntN = int.Parse(StrN.Substring(StrN.Length - 1));
        string StrM = InputList[1];
        //0乗は1
        if (StrM == "0") {
            Console.WriteLine(1);
            return;
        }
        //Nの1桁目に対応する循環数列
        string JyunkanStr = DeriveJyunkanStr(IntN);
        int Hou = JyunkanStr.Length;
        //Mを法で割った余り
        int ModVal = DeriveMod(StrM, Hou);
        //Console.WriteLine("{0}を{1}で割った余りは{2}", StrM, Hou, ModVal);
        int TargetInd = ModVal - 1;
        if (TargetInd == -1) TargetInd = Hou - 1;
        Console.WriteLine(JyunkanStr[TargetInd]);
    }
    //Mを法で割った余りを返す
    static int DeriveMod(string pStrM, int pHou)
    {
        //法が1の場合
        if (pHou == 1) return 0;
        int WillReturn = 0;
        int Jyousuu = 1;
        for (int I = pStrM.Length - 1; 0 <= I; I--) {
            int CurrNum = pStrM[I] - '0';
            WillReturn = (WillReturn + CurrNum * Jyousuu) % pHou;
            Jyousuu = (Jyousuu * 10) % pHou;
        }
        return WillReturn;
    }
    //Nの1桁目に対応する循環数列を返す
    static string DeriveJyunkanStr(int pIntN)
    {
        if (pIntN == 0) return "0";
        if (pIntN == 1) return "1";
        if (pIntN == 2) return "2486";
        if (pIntN == 3) return "3971";
        if (pIntN == 4) return "46";
        if (pIntN == 5) return "5";
        if (pIntN == 6) return "6";
        if (pIntN == 7) return "7931";
        if (pIntN == 8) return "8426";
        return "91";
    }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX