如何使用嵌套的for循环对数组的元素进行排序? [英] How to sort elements of an array using nested for-loops?

问题描述

我正在接受编程方面的挑战，很难解决这个问题.这可能是由于时间和我目前的困倦所致，但我想在睡觉前完成这项工作.

I'm taking on a programming challenge for practice and I'm having trouble figuring this one out. It might be due to the time and my current sleepiness, but I want to get this done before bed.

我想按升序对数组中每个元素的值进行排序.诀窍是不使用sort()方法.这是我到目前为止的内容:

I want to sort the values of each element of an array in ascending order. The trick is not to use a sort() method. Here is what I have so far:

          for (int i = 0; i < freq_array.Length; i++)
        {
            for (int n = 1; n < i; n++)
            {
                if (freq_array[n] < freq_array[i])
                    freq_array[i] = freq_array[n];
            }
        }

        for (int x = 0; x < freq_array.Length; x++)
        {
            lblOutDigits.Text = "";
            lblOutDigits.Text += freq_array[x];
        }

测试时，标签上只有一个"0".freq_array的作用是保持单击某些按钮的频率.因此，如果我单击Button3 5次，然后单击Button7 3次，将它们按顺序排列，即使我以随机顺序单击3和7，也应该会看到33333777.

When testing it out, I just get a '0' in the label. What the freq_array does is hold the frequency of how often certain buttons are clicked. So if I click Button3 5 times, then Button7 3 times, putting them in order I should see 33333777 - even if I clicked 3 and 7 in a random order.

推荐答案

您需要交换值

     int temp;
     for (int i = 0; i < freq_array.Length; i++)
            {
                for (int n = 1; n < i; n++)
                {
                    if (freq_array[n] < freq_array[i]){
                        temp = freq_array[i];
                        freq_array[i] = freq_array[n];
                        freq_array[n] = temp;
                    }
                }
            }

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