import java.nio.charset.Charset;
 
//プログラミングのお題スレ Part15 
//mevius.5ch.net/test/read.cgi/tech/1564310397/932
//
//932 名前：デフォルトの名無しさん[] 投稿日：2019/11/10(日) 21:37:46.78 ID:OK7x/7YO
//文字コードがシフトJISでもUnicodeでも3つ以上の連番となる文字列（最長一致）を、
//コード範囲とともにすべて表示せよ。例えば、それらのうちの1つに関する表示は、
//
//824F..8258
//FF10..FF19
//０１２３４５６６７８９
//
//となる。なお、シフトJISには機種依存文字を含んで構わない。
class Ideone
{
//  static final Charset CHARSET = Charset.forName("MS932");
    static final Charset CHARSET = Charset.forName("Shift-JIS");
 
    public static void main(String[] args)
    {
        int u = 0;
        int c = convert(u);
        for (int unicode = 1; unicode < 1048576 + 65536; unicode++)
        {
            int code = convert(unicode);
            if (unicode - u != code - c)
            {
                int len = unicode - u;
                if (len >= 3)
                {
                    StringBuilder sb = new StringBuilder();
                    for (int i = u; i < unicode; i++)
                        sb.appendCodePoint(i);
                    System.out.printf("UNICODE:%X..%X %s:%X..%X %s%n", u, u + len - 1, CHARSET, c, c + len - 1, sb);
                }
                u = unicode;
                c = code;
            }
        }
    }
 
    static int convert(int unicode)
    {
        char[] utf16 = Character.toChars(unicode);
        String string = String.valueOf(utf16);
        return bytesToInt(string.getBytes(CHARSET));
    }
 
    static int bytesToInt(byte... bytes)
    {
        int result = 0;
        for (byte b : bytes)
            result = result << 8 | b & 0xFF;
        return result;
    }
}
 

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