#541798 (C#(csc)) No.1198 お菓子配り-1

• 問題: No.1198 お菓子配り-1
• ユーザー: Lily89164763
• 提出日時: 2020-08-28 21:37:05
• 言語: C#(csc) (csc 3.9.0)
• 結果: AC
• 実行時間: 26 ms / 2,000 ms
• コード長: 2,450 bytes
• コンパイル時間: 4,615 ms
• コンパイル使用メモリ: 106,880 KB
• 実行使用メモリ: 17,536 KB
• 最終ジャッジ日時: 2024-11-16 09:19:28
• 合計ジャッジ時間: 4,074 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

ファイルパターン	結果
sample	AC * 4
other	AC * 14

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

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using System;
using System.Linq;
using System.Numerics;
using CompLib.Util;
public class Program
{
    public void Solve()
    {
        var sc = new Scanner();
        // (a + b) (a - b) = N
        // (a+b)(a-b)の偶奇一致
        // 素因数2が1つじゃない
        // a,bが正
        // (a+b) + (a-b)
        // (a+b) - (a-b)が正
        string n = sc.Next();
        if (n == "1" || n == "4")
        {
            Console.WriteLine("-1");
            return;
        }
        int m = 0;
        foreach (var c in n)
        {
            m *= 10;
            m += c - '0';
            m %= 4;
        }
        Console.WriteLine(m == 2 ? "-1" : "1");
    }
    public static void Main(string[] args) => new Program().Solve();
}
namespace CompLib.Util
{
    using System;
    using System.Linq;
    class Scanner
    {
        private string[] _line;
        private int _index;
        private const char Separator = ' ';
        public Scanner()
        {
            _line = new string[0];
            _index = 0;
        }
        public string Next()
        {
            if (_index >= _line.Length)
            {
                string s;
                do
                {
                    s = Console.ReadLine();
                } while (s.Length == 0);
                _line = s.Split(Separator);
                _index = 0;
            }
            return _line[_index++];
        }
        public string ReadLine()
        {
            _index = _line.Length;
            return Console.ReadLine();
        }
        public int NextInt() => int.Parse(Next());
        public long NextLong() => long.Parse(Next());
        public double NextDouble() => double.Parse(Next());
        public decimal NextDecimal() => decimal.Parse(Next());
        public char NextChar() => Next()[0];
        public char[] NextCharArray() => Next().ToCharArray();
        public string[] Array()
        {
            string s = Console.ReadLine();
            _line = s.Length == 0 ? new string[0] : s.Split(Separator);
            _index = _line.Length;
            return _line;
        }
        public int[] IntArray() => Array().Select(int.Parse).ToArray();
        public long[] LongArray() => Array().Select(long.Parse).ToArray();
        public double[] DoubleArray() => Array().Select(double.Parse).ToArray();
        public decimal[] DecimalArray() => Array().Select(decimal.Parse).ToArray();
    }
}
 
 
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