使用List<KeyValuePair<int、int>>，使1/4的值等于1

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<KeyValuePair<int, int>> pairs = new List<KeyValuePair<int, int>>();

        // 生成键值对，使得1/4的值等于1
        for (int i = 1; i <= 100; i++)
        {
            pairs.Add(new KeyValuePair<int, int>(i, 4 * i));
        }

        // 输出满足条件的键值对
        foreach (var pair in pairs)
        {
            if (pair.Key / (double)pair.Value == 1.0 / 4)
            {
                Console.WriteLine("Key: {0}, Value: {1}", pair.Key, pair.Value);
            }
        }
    }
}