結果

問題 No.167 N^M mod 10
ユーザー mnznmnzn
提出日時 2020-05-18 18:39:19
言語 C#(csc)
(csc 3.9.0)
結果
WA  
実行時間 -
コード長 6,072 bytes
コンパイル時間 886 ms
コンパイル使用メモリ 114,964 KB
実行使用メモリ 27,308 KB
最終ジャッジ日時 2024-04-09 21:31:36
合計ジャッジ時間 2,545 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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 WA -
testcase_01 AC 23 ms
23,920 KB
testcase_02 AC 25 ms
25,144 KB
testcase_03 AC 24 ms
25,392 KB
testcase_04 AC 22 ms
23,908 KB
testcase_05 AC 27 ms
27,280 KB
testcase_06 AC 22 ms
21,812 KB
testcase_07 AC 23 ms
26,212 KB
testcase_08 AC 25 ms
27,244 KB
testcase_09 AC 22 ms
24,096 KB
testcase_10 AC 26 ms
24,944 KB
testcase_11 AC 25 ms
25,328 KB
testcase_12 AC 26 ms
25,008 KB
testcase_13 AC 25 ms
27,184 KB
testcase_14 AC 23 ms
23,796 KB
testcase_15 WA -
testcase_16 AC 25 ms
27,308 KB
testcase_17 AC 22 ms
26,148 KB
testcase_18 AC 25 ms
27,104 KB
testcase_19 AC 25 ms
25,012 KB
testcase_20 AC 25 ms
25,136 KB
testcase_21 AC 22 ms
24,240 KB
testcase_22 AC 25 ms
25,392 KB
testcase_23 AC 26 ms
25,520 KB
testcase_24 AC 26 ms
23,348 KB
testcase_25 AC 25 ms
25,020 KB
testcase_26 AC 22 ms
23,916 KB
testcase_27 AC 25 ms
25,272 KB
testcase_28 WA -
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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.Collections;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Linq;
using System.Numerics;

class Program
{
    static void Main(string[] args)
    {
        var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
        Console.SetOut(sw);
        Solve();
        Console.Out.Flush();
    }
    static void Solve()
    {
        var N = sc.ReadStr();
        var M = sc.ReadStr();
        if (M == "0")
        {
            Console.WriteLine(1);
            return;
        }
        var n = int.Parse(N.Substring(N.Length - 1, 1));
        var mod = 0;
        switch (n)
        {
            case 0:
            case 1:
                Console.WriteLine(1);
                return;
            case 2:
                mod = CalcMod(M, 4) - 1;
                if (mod < 0) mod += 4;
                Console.WriteLine(new int[] { 2, 4, 8, 6 }[mod]);
                return;
            case 3:
                mod = CalcMod(M, 4) - 1;
                if (mod < 0) mod += 4;
                Console.WriteLine(new int[] { 3, 9, 7, 1 }[mod]);
                return;
            case 4:
                mod = CalcMod(M, 2) - 1;
                if (mod < 0) mod += 2;
                Console.WriteLine(new int[] { 4, 8 }[mod]);
                return;
            case 5:
            case 6:
                Console.WriteLine(n);
                return;
            case 7:
                mod = CalcMod(M, 4) - 1;
                if (mod < 0) mod += 4;
                Console.WriteLine(new int[] { 7, 9, 3, 1, }[mod]);
                return;
            case 8:
                mod = CalcMod(M, 4) - 1;
                if (mod < 0) mod += 4;
                Console.WriteLine(new int[] { 8, 4, 2, 6 }[mod]);
                return;
            case 9:
                mod = CalcMod(M, 2) - 1;
                if (mod < 0) mod += 2;
                Console.WriteLine(new int[] { 9, 1 }[mod]);
                return;
            default:
                break;
        }
    }
    static int CalcMod(string s, int mod)
    {
        var mul = 1;
        var res = 0;
        foreach (var c in s.Reverse())
        {
            var x = c - '0';
            res += x * mul;
            res %= mod;
            mul *= 10;
            mul %= mod;
        }
        return res;
    }
    static Scanner sc = new Scanner();
}
class Scanner
{
    string[] S = new string[0];
    int Index = 0;
    char[] Separators = new char[] { ' ' };

    public string Next()
    {
        if (this.Index < this.S.Length) return this.S[this.Index++];
        var line = "";
        while (line == "") line = Console.ReadLine();
        this.S = line.Split(this.Separators, StringSplitOptions.RemoveEmptyEntries);
        if (this.S.Length == 0) return this.Next();
        this.Index = 0;
        return this.S[this.Index++];
    }
    public string ReadStr()
    {
        return this.Next();
    }
    public char ReadChar()
    {
        return this.Next()[0];
    }
    public int ReadInt()
    {
        return int.Parse(this.Next());
    }
    public uint ReadUInt()
    {
        return uint.Parse(this.Next());
    }
    public long ReadLong()
    {
        return long.Parse(this.Next());
    }
    public double ReadDouble()
    {
        return double.Parse(this.Next());
    }
    public Tuple<int, int> ReadTup(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<long, long> ReadTupLong(int add = 0)
    {
        return Tuple.Create(this.ReadLong() + add, this.ReadLong() + add);
    }
    public Tuple<int, int, int> ReadTup3(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<int, int, int, int> ReadTup4(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public int[] ReadIntArray(int n)
    {
        var array = new int[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadInt();
        }
        return array;
    }
    public long[] ReadLongArray(int n)
    {
        var array = new long[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadLong();
        }
        return array;
    }
    public double[] ReadDoubleArray(int n)
    {
        var array = new double[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadDouble();
        }
        return array;
    }
    public char[] ReadCharArray(int n)
    {
        var array = new char[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadChar();
        }
        return array;
    }
    public string[] ReadStrArray(int n)
    {
        var array = new string[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadStr();
        }
        return array;
    }
    public Tuple<long, long>[] ReadTupLongArray(int n, int add = 0)
    {
        var array = new Tuple<long, long>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTupLong(add);
        }
        return array;
    }
    public Tuple<int, int>[] ReadTupArray(int n, int add = 0)
    {
        var array = new Tuple<int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup(add);
        }
        return array;
    }
    public Tuple<int, int, int>[] ReadTup3Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup3(add);
        }
        return array;
    }
    public Tuple<int, int, int, int>[] ReadTup4Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup4(add);
        }
        return array;
    }
}
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