2.5.21

2.5.21 #

解答 #

与之前的版本号比较十分类似，对数组进行包装，然后按照次序依次比较即可。

internal class Vector : IComparable<Vector>
{
    private readonly int[] _data;
    public int Length { get; set; }

    public Vector(int[] data)
    {
        _data = data;
        Length = data.Length;
    }

    public int CompareTo(Vector other)
    {
        var maxN = Math.Max(Length, other.Length);
        for (var i = 0; i < maxN; i++)
        {
            var comp = _data[i].CompareTo(other._data[i]);
            if (comp != 0)
                return comp;
        }
        return Length.CompareTo(other.Length);
    }

    public override string ToString()
    {
        var sb = new StringBuilder();
        for (var i = 0; i < Length; i++)
        {
            if (i != 0)
                sb.Append(' ');
            sb.Append(_data[i]);
        }
        return sb.ToString();
    }
}