直接选择排序
直接选择排序,算法时间复杂度也是N^2, 其思想和冒泡有点相似,但是区别在于冒泡找到就交换,直接选择排序先找到位置最后在交换。
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class Program
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{
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static void Main(string[] args)
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{
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int[] a = { 7, 2, 1, 6, 21, 13, 8, 4, 33, 26 };
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PrintArray(a);
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SelectSort(a);
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PrintArray(a);
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}
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private static void SelectSort(int[] array)
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{
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int k = 0;
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for (int i = 0; i < array.Length; i++)
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{
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k = i;
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for (int j = i + 1; j < array.Length; j++)
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{
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if (array[k] > array[j])
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{
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k = j;
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}
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}
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if (i!=k)
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{
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int temp = array[i];
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array[i] = array[k];
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array[k] = temp;
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}
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}
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}
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private static void PrintArray(int[] array)
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{
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string result = string.Empty;
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for (int i = 0; i < array.Length; i++)
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{
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result += array[i].ToString() + " ";
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}
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Console.WriteLine(result.Trim());
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}
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}
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